I do it in moderate amounts, and it kinda makes me feel like a creep. Glad to see that it seems to be so common.
Anyway here's some stuff that works for me:>>144
is what you start with
Googling the nick with the option site:pastebin.com works well with nerds, as it usually gives you some IRC or other chatroom logs. Those can point you to some communities they are active in.
Reverse image searching photos they posted or their profile pictures is an obvious one.
When you can't find out much about them at all, cyberstalking one of their best friends might give you new leads.
It's good to have a list with their interests and stats ready, in case you find a profile where you're not sure if whether actually theirs.
You can join a chatroom they are in, or some online community to interact with them and stalk them more. Just remember to use a vpn.Post too long. Click here to view the full text.