Wait so sleeping mobs and fighting bosses in content you have to repeat 4354357348979832423 times to get your Darklight gear to go into Bahamut's Coil is a ban-able offense?

Yet in town, outside of town, in whisper, I get all sorts of RMT advertisements and jack shit is done about that?

I guarantee you that you could exploit all you want in dungeons / in game and nothing would ever be done about it or to you if they didn't know about it. SE are blind as bats when it comes to actual issues with their game...