On Cannith, it is very rare to see Black Abbot raids forming in the LFM panel. Now, I realize that guilds may do their own runs of this raid, but I find it odd that literally no one even tries this raid, and anyone trying to form a group will have a tough time finding players to do it. Every other raid, including the most difficult Epic raids seems to run in LFM, but the Ascension Chamber is conspicuously absent.
I realize there are several reasons for this.
1) It's not an easy raid to PUG. If people don't know the puzzles, having one or two people mess up can force a restart of the raid. Usually new players to the raid can do fine at Asteroids, and there are cheap tactics to get around the ice wands, but Goggles seems to require too much teamwork for your average DDO PUG group.
2) Flagging. The flagging for this quest is absurd, moreso than any other raid. Add to that the fact that you can't carry the sigil key over to your next life, and most players procrastinate on flagging until their "final life." Of course, this means fewer people are flagged for this raid than any other.
3) Black Abbot revamp. Why they decided to beef up the Abbot to 150k hps on normal is beyond me. It's not like people were just slaughtering this raid left and right given my two previous observations. Now, there's a risk that you get in a group, get past the puzzles, and still run out of SP and wipe before you can take this guy down. Add to that some tricky mechanics in the final fight, and this is actually the hardest non-epic raid in the game.
I really think this raid needs some love. To encourage more people to complete this content, the sigil farming needs to be reworked, or players should be able to carry completed frames over to their next life. The Abbot revamp needs to be scaled back on normal.
Beyond that, I enjoy the fact that there is a raid that challenges people to use teamwork and knowledge instead of just tanking/spanking, but the ridiculous flagging system for this quest, and the way it punishes new players make it inaccessible to a large portion of the playerbase.