crosseyed: "Besides I am sure they would be tempted to take the person they have on block, off block to read the post that may or not be about them. "

Mélusine: "Ah yes it's true. It's twisted but possible !"

It is indeed a possible temptation, and true.

I used a forum-hiding facility at DailyGammon. It had two levels. With the high setting, you can't see the person's posts and you don't know that they've posted. With the low setting, you see their name but not what they've posted. You then have the option to click each message individually to uncover the text so that you see what rubbish they're spouting that day.

In use I found that those posters who are on the high setting stayed hidden because it's too much hassle to unblock them, check the forum and then block them again. On the low level it's more about how curious or bored you are. If you click on a covered post and it's the usual rubbish then you don't need to bother with the rest.