So it seemed like a fairly simple question i scoured the forums to find but didn't see it. Maybe it was so overdone people stopped caring.

hardcoe Lore fanatics will understand how it could be a problem in some fashions.

The ones who understand the Lore and MMO Gaming can see how it could be molded and reshaped to fit ESO's need's.

People don't wanna admit it's popular, but it is ( Redundant if anything D= ). Let's see what people have to say on the servants of Sithis.

no we want our own brotherhoods and brotherhood wars

Yes I would like to see all the NPC guilds to be eventually in ESO, including The Dark Brotherhood.

What do you mean by lore based restrictions?

Yeah, I would like upon my name instead of something random. But would do too

The Dark Brotherhood member's of an average rank, are bound by tenets to not kill one another.

To show how this would be a failure in a Battleground, a Khajiit gets merc'd by a Breton for example, and both are in the Dark Brotherhood. In term's of lore you would be removed from the Guild.

As stated... the dev's could probably change the Lore somewhat to make it fit in... regardless, it is something TES lore fan's would question to various degree's.