Crystal Tower is always going to be a gamble given how much of a pain in the arse it is to co-ordinate up to 23 random people. At the very least, most people seem to understand how the fights are conducted, but you still tend to find those who struggle on very basic mechanics. In its current state, I think the difficulty is right where it should be, especially when it was created with an average item level of 50 as a minimum. Whether or not people take it easy in Crystal Tower, that's an individual by individual basis. Twats, however, will always be twats. The kind of people I would not want in a 24 random player dungeon with increased difficulty.
Now, if we were to reach the point where we could create 24 player groups beforehand, then I might be more open to the idea of a hard mode option for the tower.
Now, if we were to reach the point where we could create 24 player groups beforehand, then I might be more open to the idea of a hard mode option for the tower.