Just use Tor if you get banned. It only requires you to click "STOP" and "START" in order to obtain a new IP address.

I've thought about creating a free, anonymous remailer service that will painlessly let you register 5 e-mail addresses @emailforwardingdomain.com, and link them to your own e-mail address. Then, any e-mails destined to the five (or more) registered e-mail addresses will be forwarded to your own, primary e-mail address. Registering a new e-mail address through hotmail, gmail or the like typically takes a lot longer than switching proxies, and is generally what makes web community trolling an arduous task.

"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram