when do you think its time to quit the forum

ive had this pc for 5 years in november i brought it after about a month into my second bout of dp....
i read in the papers at the weekend that a girl had joined a so called suicide website and got drawn into it to the extent that her and a few others made a pact to kill themselves,apart from the upset i felt i also wondered if she had been obsessed or even brainwashed into doing such an act...when do you think its time to say 'thats it enough is enough' and get on with life and stop visiting more self help sites...also on average how long do people carry on visiting this forum (including andys old site)

ok discuss