What are the biggest mistakes founders make when they first start posting on LinkedIn?
The short answer
The classic ones: posting resume-speak instead of talking like a human, chasing engagement bait that attracts strangers who'll never buy, deleting posts that flop, and quitting after three weeks of silence. LinkedIn rewards consistency and a clear point of view far more than polish. Pick a narrow lane, write like you'd talk to one specific person, and give it months, not days.
Go deeper, your way
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Why we picked it
Justin Welsh built a large solo business almost entirely off LinkedIn, so this is tactical guidance from someone who posts for a living, not a theory deck. He breaks growth into a repeatable three step loop (find a lane, write in a clear format, engage in the comments) that a founder can copy without a content team. Watch it as one workable system to start from, then adapt the voice to your own company and market.
Pick a narrow lane and post to it consistently. A scattered feed reads as noise and never compounds.
Format is a multiplier: a strong hook and scannable structure decide whether a good idea gets read at all.
Commenting on other people's posts is half the strategy, not an afterthought. Reach on LinkedIn is earned in the comments as much as in your own posts.
Why we picked it
This is a plain, numbered checklist of the exact errors most founders repeat in their first weeks of posting: pitching the product in every post, weak opening lines, pasting external links, and posting too rarely to build any momentum. It reads fast and you can self audit against it in ten minutes, which is what a beginner actually needs before their next post. It is a vendor blog, so treat the tool nudges at the end as a starting point, not gospel.
Why we picked it
Founders guess at what worked because LinkedIn's own numbers are thin and vanish quickly. AuthoredUp keeps a history of your posts and shows impressions, engagement, and which hooks and formats actually landed, so you can stop posting on vibes and repeat what works. We picked it over the better known Shield on purpose, since Shield is winding down after platform data limits, whereas AuthoredUp is live, has a free tier, and doubles as a writing and formatting editor.
