More than one time, while I am commenting an idea without have already voted for it, I "automatically" end up clicking the vote buttons, and lose the text already written.

Some sites keep the textbox's text even if a user clicks something. It would be nice if that happened with idea comments, too.

Another option/suggestion would be to allow commenting ONLY for ideas only after the user has voted it. It could marginally improve the overall amount of voting (although I don't think much people comment an idea without voting, even if I have already done it more than once).