I got the idea from things like facebook and MSN , i think the pros of this would be it would stop arguments if you could block sum1 so they cannot post on your threads, for an example 'brins' thread about his car , if he could block certain people from comenting on his thread then it wouldnt of been closed because the arguments would of stopped over a short time, instead of carring on for 50 pages lol what do u guys think?