Well, what I'm saying is that it is possible to convert a roguelike game to a multiplayer mode.
I don't know exactly how well that translates between Angband and DoomRL, as they have very different playstyles - I'm just saying that it has been done before, and that if anyone was curious as to how to go about doing it, they might find some useful information over at MAngband.
I'm not necessarily suggesting or requesting that it be done, just providing a bit of information to anyone interested.
It's also quite a decent game, if any Angband players are around that wanted to give it a try - might even download the latest client and try it(again) myself, between rounds of Doom, of course.