if you dislike trance why not just ignore the thread?
as for putting my name on their work...people have been doing mixes/compilations/radio shows for a looooooong time. you probably don't complain when your local radio station plays a song you might like...but by your logic they should never play it because it's not their work.
while i'm not part of a huge online radio station, i still do weekly broadcasts. all the tracks in my mixes i have either through promo (from the artists themselves), or bought straight from sites like beatport.com