This would probably never be introduced by the admins, but you could do it yourself! I would suggest creating a topic in the off topic section and everyday post your favorite comment you found on the forum.
You've beat me to it. I was just going to ask OP what is preventing him from making such a thread in the off topic section?
I don't see a reason why the forum staff should make/maintain this. They'd even have to chose the right people that would vote for the comment and thread every day. This isn't something that could be done within minutes.
There are a lot of
weird unusual topics in the off topic section, I don't see a reason why we can't have this thread there as well.