Yes. Mashups are not acceptable. They destroy the true meaning and feel of the track(s). (not to be confused with covers either which is a completely different issue). There is also a question of whether they are legal. That's why there's a thing called copyright. Anyway that's my opinion. If you don't like it - tough. As for your last two sentences, I'm not even going to bother to answer. I have too little time because I have so much to do. Bye.
'The purpose of life is a life of purpose' - Athena Orchard.