One of the reasons I'm cynical about online communities is because certain users will seem to have invested their entire life into participating, e.g. spending

One of the reasons I'm cynical about online communities is because certain users will seem to have invested their entire life into participating, e.g. spending 12-16 hours a day online (per their post history). Basement Dweller is an dumb insult, but some useful distinction could be made about these people.