same thread added to the forum every hour

[gosh]

Did you notice that a particular thread is keeping popping up as new every hour?

It's has this subject:
Re: edgy: gnome-settings-daemon crash

and is posted by Scott J Henderson

[bonzodog]

ah, I see it.

It's an Ubuntu mailing list discussion. As the forum only aggregates the mailing list, each reply to the original topic comes up as a fresh thread.
The only thing you can do is ignore it.