What if people are participating and don't even know it? I just Tab+Bio and scroll through enemies without even looking. If the people around me were "exploiting" I would not notice until the timer ran out and we failed. So, would all the people around me /BL me simply for being in the group?

You say the people using this loophole are poisoning the community, but really, it seems like everybody who is riding on their high-horse and trying to control how other people play are just as guilty - if not MORE- because they advise others to /BL and there are very real consequences for the community as a whole as a result.

Good luck using the dungeon finder when someone in your party has a bunch of people /BL you won't be able to have them in your group and you will have to wait that much longer. All you are doing is hurting yourself in this regard.

Leave the judgments and punishments to the developers. Your $15/month is no more valuable than anyone else's.