I'm not saying they aren't but when has the tactic against a bully being to bully them? Regardless of what you think about Paypal themselves, there are an awful lot of people that rely on the service they provide that can now no longer use that service due to the tactics of Anonymous.
Maybe this raises a serious question. Why are so many people (including myself) reliant on one company for handling their payments? Maybe traders should start adding alternative forms of payment to their excepted payments. I know I will.
It's good to accept more than one kind of payment for flexibility, but is the dominance of one payment method really so awful? It always seemed like a natural monopoly to me. It's so closely tied to paper cash... (which you'll remember must be ubiquitous and the only currency to function- except in extreme cases)