Lone_Scout: Sorry, but
not signing.
Personally, I like being able to give a positive or negative rating to a certain post, or seeing its overall rating. I think it is quite a valuable feature in a discussion forum, when used properly (which is the majority of times, imho). Besides, it is one of the few defenses we have against spammers and trolls around here.
I know there have been some serious abuses on this system, and have even witnessed a few of them myself. But that's not enough reason to disable the whole system, which works well with the exception of those cases. However, some tweaking on it to avoid those situations could be implemented. Maybe removing the anonymity of the votes could solve it, or on the other hand it could just escalate things, as some people could start regarding votes as a personal affair, downvoting every post from their downvoters and so on...
So I prefer keeping things as they are, but I won't complain if some changes for the better are implemented in the forums.
Perhaps a good balance could be to preserve the upvote button, remove the downvote one, and implement a new feature for each user to ignore others so that theirs posts are displayed as collapsed. It would be similar to the current system with the difference that the scope of the downvoting would be moved from a community wide level to a user one, the users I want to ignore will only be ignored by me.