When characters go too high, they are unable to to be hit or hit anything. The same goes to certain moves. Along with that, Ridley does not have to be physically there, his shadow can be there but not him. This is called an illusion. We are talking about professional coders here, I also doubt he'll be flying around that one area. I think the shadow just kind of says "RIDLEY IS COMING." and nothing more.
It says more "Ridley is watching you smash" IMO. Anyway, characters CAN hit something while that high. That is how you can see Ridley's death animation flaw in Brawl when you beat him when he is high enough (he just stops moving anyhow after certain number of frames, so, he will just stop moving before going off-screen). Thunder and most likely some of Palutena's attacks will still be able to hit things that high. It did (at least in Pikachu's case) in Brawl.
An extra 5k isn't much when you're already getting sued for 100s of thousands. Perspective. Also he's losing his job and ability to get a job anywhere else, especially in the games industry.
So, he HAS something to lose? And it is a lot. IMO, it was a very illogical decision to just lose so much just to leak some info.
I disagree that leaker having brazillian monitor/whatever can tell us something other than that he has one (or more for whatever reasons). You can have a non-brazillian monitor while living in Brazil and you can have a brazillian monitor while living in other countries. I and many others, for example, have some stuff made in China, so, it is from China, but i don't live in China.