LinkedIn is an interesting place for freelancers, and represents a lot of opportunity with all the professionals and shared knowledge it contains.
Unlike other less formal social networks, it’s easy to step over some lines and make yourself look like an idiot in the process — especially if you’re working to win new business.
Are you guilty of any of the following?
(1) You Connect with Someone Without Giving Him or Her a Reason
Okay.
Let’s assume you’re connecting with your mom or best friend on LinkedIn. Obviously you don’t need to change the default message LinkedIn spits out for someone who has no reason to reject your connection request.
On the flip side, that guy you met at a conference last week?
He probably met 30 other people that same day and may benefit from a quick memory jog by personalizing your connection request. It doesn’t have to be incredibly detailed, just give him something!
Something not like this, I mean. This type of connection request is unlikely to get you more than 0 connections:
(2) You Join a LinkedIn Group Just to Spam Your Links
LinkedIn groups are one of the most under-utilized but most important features of LinkedIn.
I try to join at least one group for every professional interest I have. For example, I’m a member of blogging groups, email marketing groups, social media groups, Chicago-based groups (where I live), school and job alumni groups… you get the idea.
You can join up to 50 — so make the most of them! But don’t just join them to see what’s in it for you. I promise, being an active group member will result in great benefits.
But you can’t always just spam links to your own website or Upwork profile.
Contribute knowledge whenever it makes sense. The more active you are, the better your chance of being a top contributor which results in a great clicks to your LinkedIn profile!
(3) You Ask for Help, but Never Give Any in Return
Whether in a LinkedIn group or when making a new connection, it can’t always be all about you.
I know.
We’re humans.
We’re selfish.
But if you have the opportunity to help someone with the knowledge you possess or the connections you have, why wouldn’t you? Karma is real, and I’m sure you’d want others to do the same for you.
(4) You Don’t Use Spell Check
And I’m not just talking about on your word processor…
Spelling errors are forgivable, if somewhat annoying and laughable on Facebook, Twitter, and other social networks. But LinkedIn is a professional network. Exercise extra caution with daily posts and when constructing your profile or changing any descriptions.
It happens to the best of us!
A connection warned me once when my tagline contained a misspelling. I was grateful to be notified right away, and much more careful in the future.
Your welcome, eh?
Just one example of many.
(5) You Use Emojis, Smiley Faces & Memes
Along the lines of being conscientious with your spelling and grammar, you must exercise caution in terms of “normal” social networking behavior.
While Facebook and Twitter are legitimate places for videos of cats or goofy emojis, using them on LinkedIn cheapens your personal brand.
Use your best judgment in conversations and posting!
(6) You Have Endorsements That Have Nothing to Do with You
Ever get this notification?
“So and so endorsed you for ___…”
I get those frequently.
Most of the time, it’s awesome and represents another professional I know backing my expertise in some field I’m passionate about.
In some cases, I ask myself… why?
Everyone gets silly endorsements, but it’s your choice to display them on your profile. So get rid of or hide the ones that have absolutely nothing to do with your professional aspirations…
…or dig too deeply into your personal life.
(7) You Have Zero Recommendations
Okay, this may be pushing it on the “things that make you look dumb” scale, but having zero recommendations certainly doesn’t make you look good, either.
If I’m an HR Manager — relax, I’m not! — and I’m looking at two different candidates on LinkedIn… one with a complete profile and a few recommendations for related jobs, and a candidate with similar experience who doesn’t take their profile as seriously, it’s going to affect my judgment.
Sometimes it’s the little things that can make or break getting a job. Asking for recommendations is a no-brainer.
One of my favorite recommendations is from Teddy of Protein Bar. I sent him a message with some easy talking points and he used his own experience and style to give me a very solid recommendation.
(8) You Haven’t Completed Your Profile
If your LinkedIn profile contains a short line for each position you’ve had, no summary, and no additional experiences like volunteering and certifications… you’re just hurting yourself.
A complete profile is rich with keywords — not unlike a blog post!
And like a blog post, you want to optimize your profile so that it’s easy for someone looking for a candidate to actually find you. It’s been my experience that the more details, the better.
On the flip side, there’s something to be said about having too complete of a profile:
Due to the professional nature of LinkedIn mixed with the permanence of the internet, it’s easy to make mistakes without even realizing it.
What are some of the dumb LinkedIn mistakes you’ve seen?
Instructions (According to This Topic)
Always personalize LinkedIn connection requests with context
Use LinkedIn groups for value-driven engagement, not self-promotion
Follow the give-first mindset when asking for help
Proofread all profile content, messages, and posts carefully
Maintain professional tone—avoid emojis, memes, and casual slang
Remove irrelevant endorsements that dilute your expertise
Actively request and display meaningful recommendations
Complete your LinkedIn profile with detailed, keyword-rich information
Treat LinkedIn as a professional branding platform, not a casual network
Regularly audit your profile to align with your freelance goals
Conclusion
LinkedIn offers immense opportunity for freelancers—but only when used strategically and professionally. Small mistakes like generic connection requests, incomplete profiles, or casual behavior can quietly sabotage credibility and cost real business opportunities. By treating LinkedIn as a long-term professional asset and avoiding these common missteps, freelancers can strengthen their personal brand, build trust, and attract higher-quality clients consistently.
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