They are the HH community members that play in the TF2 leagues.

ETF2L - http://etf2l.org/ (180+ teams signed up for season 3)
EDTF2L - http://www.enemydown.co.uk/league.php?event=381
WPTF2L - http://tf2.wireplay.co.uk/
ESLTF2L - http://www.esl.eu/eu/tf2/
SGLTF2L - http://www.thesgl.com/tf2/
EDWTFOMGTF2L - http://www.madethatup.com/tf2

Silly question but will this section be hidden from view from those that don't need to see it?

As it's pushed down the reg's section and I hate having to scroll my mouse so much -- he gets dizzy if I do it too much!