User blog comment:Kasix/Wall of flesh/@comment-4664776-20111210225154

Well, it's meant to be hard, it's called hardmode! xD If you defeated the Wall of Flesh and had no on-going challenges afterwards, would that not be too easy, and therefore, become too boring?

I like it, the corruption isn't too hard to prevent, assuming you're strategic with the placement of seeds, and also, if you're sick of any corruption, all you need to do is buy a lot of purification powder, and just go crazy.