Creditiing someone

Is it OK to credit someone by using their username, or do you have to hunt down their real name?

e.g. particle effects - JFK

You could probably get away with either, most people will use there username unless they have personal contact with them.

In my Case say "JFK of CSP" or only "CSP". CSP, not CPS, as most people write :)

(BTW. recently I found out that there are still some bugs in the code. When I wanted to use it for non-rotated Bubbles sprites, it turned out that somthing's wrong with the rotation - happy debuggin then :P )

if i give credits to JFK i write allways

Tingel Tangel Bob !

in most cases i use the usernames

luckily I didnt come across any bugs that I could see(!)

yeah, the good ol tingel tangel bob days... ^^.