Not really sure if World Bosses go here but I figured I'd give it a try.

Are there any guilds or groups that do Nightmare Pilgrim anymore? I am stuck needing him two more times to get my Aratech Coral and PUGs just never form for it even during conquest time. I was tanking for one PUG and we did 4 world bosses but when it came time to do NP (that they promised to do so I'd tank for them) all but 2 bailed.

This one is quite an issue. Before you could 2-man it, but then we got level sync and now its a challenge once again. Its not really a challenge, but it does require the people to know what to do. There is always the possibility to rev and run back but its still tricky.

 

As you wrote your best bet is to join a big guild that does this from time to time, but there are very few that do. On Darth Malgus server I only know of Stroke my Wookie doing it, maybe Wardens of the Republic. The boss himself is not really worth it since the rewards are still the old ones so there is no real point to do it, thats why its hard to get a group for it.

If you're on Star Forge, join the Allies channel and ask in there - I've seen it formed a couple of times over the past week, but yes it's pretty rare.

What server are you on? People make groups for it few times a week on Malgus.