@Lilliwyt
I don't know how you read my post and turned it into some kind of "these guys are more motivated than the usual guys" thing. The point I made is purely that sniping the last chapter shouldn't cause regular scanlators who are in it for the long haul to drop the manga, and if something that minor does then they probably weren't going to make it there anyway.
The motivation of SSSSSSSSSSSSSS doesn't matter. Obviously a group that does a lot of last chapters and oneshots is going to be lackadaisical, and that's enough for that they do. Of fucking course people should translate manga they like, and drop manga they don't like if they decide they don't like it anymore. Free scanlation isn't some kind of binding contract.
To put it in the context of what you snipped from my post: yes, obviously, if SSSSSSSSSSSSSSSSSSSSSSS does the first chapter of a manga, and then someone else snipes the last chapter, they're probably going to drop it. That isn't because they're soooo upset that someone did the last chapter before they could get there, it's because they do what they want, and what they want probably wasn't doing the manga to completion in the first place.