so you want to learn whitehat?
mcompute.co.uk
so you want to code?
qlimaxcode.com
You could google things of interest so you can find a new forum to use. Hackforums is not the only thing that should keep you motivated.
Three days will not kill you, or at least I think. It's incredible how some are so dependent on the internet.
go outside and have fun for a while. You'll come back when you're unbanned and certainly see things through a new perspective.
funny how I posted this
3 days ago and it's still active
