I analyzed 130,000 LinkedIn posts to find what actually boosts engagement: 3 things to do, 7 to stop
I got tired of generic LinkedIn advice that never comes with properly cited data, so we pulled 130,000 posts from 2,500 profiles (July 2025 to July 2026) and tested the most repeated rules. Every comparison is the same person against their own posts, because comparing different people measures the people, not the tactic. The study we did put to bed, most of commonly cited "tactics"...
Only three things survived:
- Put an image on it. +33% engagement vs the same person's text posts. A screenshot or a phone photo is enough. Simple, but It's the biggest lever we found.
- Start with "I", "my" or "we" and say what happened. +20%, and it held in every format. "I rewrote my profile last month and inbound doubled" beats "You need to stop treating your profile like a CV". Same message. One sounds like a person.
- Post 3-4 times a week and judge the week, not the post. Each post earns less, the week earns roughly triple. Most people quit right when it's working because they're watching the per-post number.
Things you shouldn't be doing:
- Hashtags. One or two do nothing at all. Three or more costs about 7%. I'd been adding them for years. (Why do they hurt? The data shows that they do, not why. My guess is they make a post read like broadcast content instead of a person talking.)
- Ending with a question. The typical question-ending post gains zero extra comments and loses about 10% of reactions. We tested 5,494 of them hoping this one would survive. It didn't.
- Opening with a question. Worst opener we measured, -15%.
- "Unpopular opinion:" openers. Coin flip.
- Chasing posting times. Same person, weekend vs weekday: about 2% difference. The scheduling blogs each publish a different "best time" anyway, which tells you everything.
- Counting characters. No ideal length exists in the data.
- Switching formats to feed the algorithm. Slightly worse than sticking with what works.
- Polls. Down 58%. Smaller sample, but nothing in the data recommends them.
- Reality check while you're here: the median B2B post gets 34 reactions and 3-4 comments. At 5-10k followers, 27 is normal. Ten comments is a great post. Benchmark against people your size, not influencers.
Things we could NOT test, so you don't have to ask: link-in-first-comment (comment threads aren't in the data), impressions (nobody outside LinkedIn can see those), best hour of day. Anyone giving you exact numbers on those is guessing.
And yes, I've changed how I post since running this. Images on everything, hashtags gone, and I stopped bolting an engagement question onto the end of every post. Which is why there isn't one at the end of this one. Apparently it wouldn't help.
If you want the full study with the charts and methodology, say so below and I'll drop the link in a comment.