There is a *variation* of this which is allowed, namely "Hidden Features of..."

http://meta.stackexchange.com/questions/56669/should-hidden-features-of-x-be-removed-closed-locked

The difference as I see it, is these aren't just mindless *lists of stuff*, but pro-tips where experts share specific details about how they do things.

A simple "what is available" or "let's list all things of type X" does not fit this criteria at all.