Personally I think they need to add a cooldown for individual players using vote abandon. Most of the time that I've seen vote abandon abuse, it's one or two crybabies spamming it.

If they made it so individual players could only initiate a vote abandon once every 5 or 10 minutes then the spam/abuse would probably be mitigated quite a bit.

If there's a legitimate reason to vote abandon then more than one person could still initiate it several times but in all honesty, if it's been rejected then the majority has already spoken.