Aha, now we may be getting at the problem.
That is a Simon and Garfunkle forum.
That's what makes
a forum, here. You tag something "xyz," and an "xyz" forum is created. Anything else tagged "xyz" also goes in that forum.
Does that make sense?
edit.... hmm, I'm rethinking now. I see that it's in "My tagged topics" rather than the "Simon and Garfunkle forum." So you have a point there.
I'd still like to see examples re: Philosophy though. (And again, just trying to figure this out, might indeed be a problem.)