Do you need a minimum karma level for that? I don't ever have any down arrows and have always wondered. I'm near 500 karma so kinda surprised. Probably in some faq that I'm too lazy to lookup
Many years ago you did not need any karma to down-vote anything. That has changed a long time ago and for years I refrained to get higher karma just to regain the ability to down-vote.
It seems there is a 500 karma threshold for down-voting comments and another one to down-vote posts.
Edit: And another karma level to down-vote comments beaten to death.
