I think it's a 2 way street. You post to give the the community what you think they will like, laugh at, or just find educational and maybe even engaging and then you respond by commenting to others for your reasons stated.
Discussion
which community is going to see your post though? You have to build a community first
Nostr is my only community as far as social media goes. Again, you build community as you post AND respond to posts. That’s the synchronicity we are all looking for.