I think it should become the norm to first find out how someone's doing before you start debating them

Online. Find out if they want to debate too.

It is so antisocial and dysfunctional to just show up in posts that aren't inviting a debate and throw your weight around. So careless and self-centered.

And yet, it is now an acceptable behavior.

Listen , internet people. Either make it the norm to be considerate, or I will go to every single debate thread and talk about my partner's a-hole, casually and in detail.