The problem is not people having different opinions but when one person of the two turn it personal and start on the personal attacks. This is what that feature is for. Sadly, many people here can not handle an opinion that is different to theirs even if the person stating it is being polite about it. Often this feature is used to have the last word though.
I always thought you could block a person who answered your question - This blocking as part of an argument is very annoying to people - I have done it I think once or twice but decided it was very childish - I now tend now not to get invovled in arguments rather than get angry and think about wanting to block.
What i think is going on you've ask anonymous post/ question and the person making the opinion can block the anonymous from contacting them but I'm sure both persons need to be anonymous for this to take effect
Apparently. I think it's been that way for a little while though. All you have to do is report someone. Some people are banned, because the asker doesn't like what they read. It's immature, I know. But some people don't seem to want to grow up.