I understand Bungie don't want to be responsible for matchmaking in what is a serious team challenge requiring commited players but there is no reason an optional status bar couldn't be provided for players wishing to declare what they are looking for.

Currently the player tag details the player name and level. If there was an option to toggle a second tag, detailing player status (e.g. LFG - VOG) this would prompt other players to interact and invite them to fireteams and, crucially, the matchmaking would be out of Bungie's hands.

This needn't just be restricted to raids - weekly Heroic, Nightfall or Crucible could all be included as LFG status options. I can't image this would be a huge technical issue for Bungie to trial but, if it works, for a lot of players it could open the game up and extend it's longevity.

Why not trial it for a week?