On this message, if you have a popular site it's good to have a username that relates to the subject. There was this fansite for a game that was coming out called Stellar Dawn, I guy called stellar now has over 30+k profile views after 800 posts or so because his name is related to the keyword Stellar.
So that's another good way to get people into the forum.
Great guide, its indeed smart to give away something of your self so people might know you faster, also posting alot and finding by that people with common interests like you can be good for you and your site, as they sure will click on your profile and might check out.
@ Tom indeed.
I always fill in that information, half of it like giving my msn, age, location, occupation that stuf, and of course site link!