I want to vote against this. If I make a post stating my opinion about something that the whole world disagrees with, then I also want the whole world to see it.

Let's say I would be a vegetarian and would say 'Don't kill those poor animals' on a foodie forum with mostly meat eating son's of a bitches that are all going to vote me down for calling them that. So what would the outside world see when my opinion gets brushed away? That's right, to the outside world it will look like the forum is only for people who eat meat.

PS: I'm not a vegetarian