The only way around it is to pay the fee.
Yep.
WilliamBratsky, have your friend send a personal message to Theymos explaining what's happening. Theymos will then decide what the fee will be to take that IP address off the proxyban list. It shouldn't be some crazy amount. You'll probably have to wait a while for Theymos to respond...the boss is busy.
The same happen to my friends, Is there other way to avoid payments.? Speaking of payments, How much do they need to pay just to login in the forum, ?
There isn't a way to avoid it other than to use your IP or a non blacklisted IP to register here with a brand new account.
As for the fee, you're better asking them as it'll very based on how banned that IP is.