Ext4 to be standard for Fedora 11, Btrfs also included (heise online)

Oh, that's a bit harsh.

Yes, the ext4 developers are experienced and talented.
Yes, the XFS developers are experienced and talented.

But who is more talented or experienced *does not matter*.

What matters is that they put their time and effort into
improving Linux and supporting their user community.

Respect them for providing you with a choice in filesystems
and doing everything they can to keep your data safe and
accessible. Respect them for supporting their users even
things go wrong and helping them to recover as quickly
possible. Respect them for introducing new technologies
that help their users.

The fact that some filesystem doesn't meet your particular
needs does not give you an excuse to disparage the efforts
of the community which develops and uses that filesystem.
Some people may find that offensive and be far less polite
that I have been. So, in future, please be more thoughtful
before posting.

FYI: Yes, I'm an XFS developer.