OK, not
all. Probably 90% of the hovering make the mess. I am sure there is a small percentage that actually cleans up their sprayed pee. Considering a good percentage of all public toilet stalls have pee all over them, I think it is safe to say most hoverers are not cleaning up their pee.
Like Spider, I find a clean toilet, wipe the seat with toilet paper just in case, and I sit. I can honestly say I haven't caught any toilet cooties yet.
For the people who hover, what do you do if you have to drop a deuce in a public restroom? Do you hover and poop? That's gotta be a challenge.