NSC/Fixtures?/Amusing 'new' facility/Can't think of a thread title

[TSB]

May be old news here, but I notice a little symbol (located near the Attachment symbol) which, when hovered over, gives a synopsis of a thread. Rather amusing, some of them.
Is this new? Is it mods only? Rather amusing, so I assume El Pres is doing them.
Clue me in.

Edit: tags, eh? Well, how do you do that?

 

[Bob!]

I don't seem to be able to open them

 

[Screaming J]

Well, yes, except I can probably guess for myself that a thread entitled 'Hyppia, you don't know what you're doing' is a 'bedwetting frenzy'!

OK, I am editing this comment to take that back. A thread started by a Burnley fan with the tag 'outside toilet' IS - to me anyway - amusing.