Formatting issues

I don't know how or even whether it can be read in a browser page. In Akregator I use http://userbase.kde.org/index.php?title=Special:RecentChanges&feed=atom to follow the changes.

I imported the feed into Akgregator and I found no relevant edits there.

Imported into what? Are you using a feed agregator?

I've no idea what you are doing wrong, then, because the feed works perfectly in Akregator for me.

The feed works perfectly for me also. However, it contains no information relevant to your problem.