Being quite new to HN, I don't think less anonymity would improve it, mittigating the "fatt finger" syndrome in mobile would help more :-)

As for the advice, it alredy occured more than once to me to read some comment here and my first impression was "ahh, that's stupid". Butter after following the discussion a little bit more and / or on second thought it turned to "hey, good stand point after all".

I think that's where the voting buttons come in.