Why don’t people answer their messages

Right. Just block them.

I don’t know what this site is for. And not everyone likes to talk on private.

I enjoy posting, replying, and to some extent, chatting in private.

But I do not feel an obligation to respond to every post, every reply, or every chat.

I can be social and meet people and still be discriminating about how I use the site.

Only doing things in the open publically is enough, noone has to have private messaging to be sociable.

I am not obligated to answer any PM. People can meet me where I’m comfortable or not at all. Period.

I don't feel like it sometimes