Is it a bad thing to have?

No, not at all.
You wouldn't mind having one. The poster to which I replied thought it pitiful that there wasn't one.
There's a big difference.

But... there still isn't one. As Dotsch said, it's just something which hasn't been ported to the Linux version.
Are you volunteering to add it? ;)

Is there any working screensaver for seti with linux/kde. I can't find one. that seems to be kind of pitiful given the number fo open source geniuses we have.

Perhaps you need to re-evaluate why you're running seti in the first place: for the good of a large and voluntary project with a potentially mind-blowing outcome - or just for some dinky little eye-candy?