That tileset list was last updated in 2004? Well, seems like someone has a lot of catching up to do :P. There are a lot of awesome tilesets out there. A good way of getting them is downloading the latest Anniversary Bash packs, which are full of levels and their tilesets. I don't make sets myself, just happily 'borrow' the creativity of others to build my stuff ^^. With the existing sets there are legions of opportunities for your creations, be they Single Player, Battle, CTF, Tests, whatever.

Speaking of tilesets, I wish there was a night version of Galavant's Gothic tileset. That would be so awesome.

About the other thing: as long as you don't put the F word in every sentence, it should be fine. I just don't see the use of putting it in a dialogue at all, but if you think you should do that, then do it .