Another thing that has come to my mind upon re-playing Platinum: is it ok for nurses to say "we hope to see you again" after healing you? Isn't that just like, you know, wishing for your Pokemon to get hurt yet again ASAP?
You mean like in Gen 5 and 6, where shops are inside pokecentres? But IIRC nurses say the same line in those as well... They probably just want us to get thrashed so they will always be needed...