We're interested in users who have true fun of computing. We're not interested in any kind of malicious users, those who have fun of annoying, threatening, and by other means disturbing other people.
If you really have good intentions, then don't worry. We're cool guys and we don't treat good people bad. If you want to have fun of free shell, if you love old Unices, vintage computing, or just want to make your web page public, then good. You don't have to worry. We're friendly old farts.
If you are bad, then just don't request account. This will be wasted time.
Things that are strictly forbidden: