Emmanuel

In general:

• If you're going deep on a subject of interest to you, someone somewhere at some time will be glad you did.

• If you're shitposting or otherwise doing cheap humor, the worst case is nobody really cares.

• Both of the above assume that nothing you're trying to communicate is hateful or punching down. Punching up is fine.

That's my satellite photo eye view on the topic.

something tells me that 'value' is a terrible way to judge communication, especially as it often judges the person communicating as well

what kinds of things do you find interesting to talk about?

you don't. others have to determine that.

sometimes you won't have something valuable to say but to be rid of it it has to be said and sometimes saying it might just start a conversation about how that was a pointless thing to say so it doesn't matter if it's valuable, as other typically obnoxious people have figured out, it just needs to evoke a reaction

It's best if people give you feedback. You can ask for some, but nobody is required to give feedback. Otherwise, it's difficult to learn how to communicate with specific people by yourself - it needs to be a collaborative effort, both sides need to care about it.