It's the posts that are either genuinely helpful, or the posts that gives you the impression that the poster really knows what he/she's talking about.

And I don't mean the posts that are made unnecessarily long just to give the impression that you're putting effort. Trust me, knowledge and interest in Bitcoin/crypto is something that you can't easily fake despite Bitcointalk being a text forum.

^Check my post history. I barely make "long" responses, but I still maintain a decent activity:merit ratio (though definitely not as good as BlackHatCoiner, NotATether, o_e_l_e_o, etc).