At some point, I hope RSS stabilizes, people stop fighting over it, and just let it be. It's very useful, really very simple, and it belongs to users, not techies. It's unique in that regard, most XML specs are incomprehensible to people who use the stuff. RSS is quite comprehensible, by design. [Dave Winer]

I'm not really following the software industry long enough to say, but it seems to me that every format either evolves or becomes obsolete. Am I wrong here? If I'm not, is there something different about RSS that this rule doesn't apply?

Update: After getting some feedback I realized I meant superseded, not obsolete.