From what I gather AOL didn't really "fuck" with Nullsoft, they kept working on what they wanted. Justin & Co. got bored being a big corp subsidiary and needing to work on WinAmp (which is what they were acquired for). And so it just didn't really whip llama's ass for them anymore, they escalated and quit. Effectively it was them fucking with AOL, not the other way around.
AOL shut down Gnutella and WASTE. Certainly the right business move because of they were both lawsuits waiting to happen, but I'd imagine that it disappointed Nullsoft nonetheless.
