LinkedIn has shared some new notes on what you should be looking to post in the app and what kinds of content will be penalized by its feed algorithm, helping you maximize your content performance in the app.
The misspelling of “streer” also stands out, but overall, LinkedIn’s posting tips ae pretty much what you’d expect: Share original thoughts and insights, don’t post spam and engagement bait.

Its tips on what not to post provide more insight, especially considering that they’re based on what LinkedIn’s feed algorithm will look to restrict.

This note, in particular, stood out:

"Avoid content that promotes negativity and discourages conversations - Just as individuals appreciate diversity of thought, which can be an incubator for healthy debate, discussions must remain professional and respectful. Any content promoting negative, condescending, and non-productive dialogue is corrosive to relationships, chokes off legitimate discussion, and hinders our members' ability to have meaningful discussions."

Specifically, LinkedIn names three categories of such negative posts in this category:

Dismissive: content that shuts down or dismisses others’ opinions, experiences, or identities, making them feel like their perspective doesn’t matter.
Derisive: content that mocks or makes fun of people or groups, often using sarcasm or talking down to others.
Nonconstructive: material that derails discussions, including yelling, cursing, attacking others or to provoke an argument, or being sensational in an effort to scare or offend others. Humor is fine, but avoid jokes to someone's expense, corporate memes, any viral video, or mockery.
Oddly enough, this is almost like a playbook on how to win at X, but LinkedIn's really saying not to be mean, because its algorithm trains against you to do so.

But then, I don't know how they actually detect posts violating these rules outside of user reporting. Maybe a combination of negative keywords (bad language, obviously), and perhaps measuring the responses in the comments. LinkedIn, however, says that content not meeting its standards "may not get shared beyond your connections and followers."

LinkedIn's other things to avoid are:

Content that is only promotional or commercial in purpose to sell goods, services, or events without providing valuable information, news, or advice.
Criticisms or off-topic comments on other content. Comments which are only posted to make self-serving promotions for irrelevant products, services, or links, ditto for engagement pods.
Graphics with text intended as humorous or commentary about culture or global affairs without professional context or added value.
Content or activity that solicits likes, shares, comments, or follows.
Lifting, sharing other people's content
There's adult content. The LinkedIn guideline states that it is better to avoid a content that contains non-sexual nudity, but sexual nudity is a definite no-go.
Content that may be sensitive or disturbing, such as pictures that depict injuries and death (even of animals).
So, most of those are pretty straightforward and standard for social apps, though the note on posting things "without added professional value" is an interesting point.

LinkedIn has been trying to reduce the presence of overly personal posts that have no professional relevance in the app, which saw big growth after the pandemic. More people began working from home, and more started posting about their personal lives, which drove engagement and eventually led LinkedIn to look more like Facebook for a time.

However, last year, LinkedIn modified its algorithm to prioritize professional expertise and insight, probably what the above statement pertains to. LinkedIn does not care about what you are having for dinner; however, it cares for individuals sharing their business valuable knowledge that should be the focus.

These are some useful notes, and in combination with LinkedIn's other notes on how its algorithm now looks to favor professional content, they might just help you optimize your LinkedIn strategy, squeeze more out of the platform in 2025.

Also, posting video will help. LinkedIn recently reported that "immersive video views" have increased 6x quarter-over-quarter, while total video viewership in the app is up 36% year-over-year.

All these tips together can help drive a really effective LinkedIn approach.