PostEaseThe limit is a forcing function, not just a constraint
A short character limit removes the option to warm up slowly before making a point. There isn't room. That constraint tends to produce sharper writing than a platform with no limit at all, because it forces a decision about what the post is about before you write a word.
One idea per post, not several folded together
A post trying to make two points at once usually lands neither clearly, and the character limit makes the problem worse than it would be on a platform with more room. A single, sharp idea reads better and is easier to react to than a post trying to be three ideas long.
A genuine opinion outperforms a neutral summary
A flat restatement of a fact rarely earns a reply, since there is nothing to agree or disagree with. A specific, honestly-held opinion, even a mild one, gives people something to respond to. This is different from being provocative for its own sake; the opinion still has to be one you would defend.
Replies are part of the post, not an afterthought
A post that gets replies and then goes unanswered reads as a broadcast rather than a conversation, and the platform's own engagement signals reward the conversation. Checking back and replying to real responses, especially in the first stretch after posting, extends a post's reach in a way the original post alone often can't.