Yes ive also noticed how the exiles and izalith have ran behind billy's protection. And a bunch of small covenants attacking one big one would be confusing, hard to plan, and just annoying. In my opinion, I dont think the Darkstalkers should not be able to have ANY allies lore wise. They want to suck everything into an abyss! Including Anor Londo which contains the painted world, And Izalith. And You are right on the account of no one challenging Billy, The only one who had the balls to do it was Wyrm, and now hes gone, and now Ahho has decided to put her Exiles behind billy's abyss. How we are going to solve this? If a few of our covenants get a decent amount of members, Im sure we could defeat them and restore order, but other than that billy has total control right now. If our covenants are 'destroyed' from losing so much and members leaving, that leaves, a unhonourable darkwraith covenant, and a two exile covenants. But if our covenants are put to death like that one Darkmoon covenant, They will inevitably be reborn, from bordem by the members. I think we just need a more balanced covenant system, Because billy's covenant is so simple, and has the most popular in-game covenant, Of course he is going to get 50% of this whole forum on his team. And I also understand he has worked hard on it, he deserves those members, but it is really screwing up our system. (Not just the darkstalkers, The alliances with the darkstalkers is making the covenant system a little unstable. Same with the lack of members on the opposing side.)
(If I offended anyone with this post let me know, I know I probably Didint but I was letting some opinions out that may seem harsh to some people. Just putting that out there.)
Now I like every single covenant, But this is getting a little out of hand viral you are right.