Most people don't know what went on with Pharos Sirius, how people would utterly fail at it so much and just insta leave on seeing it (I'm pretty sure this dungeon got us a lot of the leave penalties we have now). Dungeon wasn't hard pre-nerf, you just had to pay attention...but that was too hard for most. So it got nerfed (and yet, I still see people fail at it in 50 Roulette. Makes me giggle)

And then, there were the Bees with Demon Wall...


Point is, there *were* dungeons that required a slightly elevated level of skill...they got nerfed because the vast majority couldn't handle them.