Things like download tickets, which make you wait before you download a file; a limit on how much you download before a wait of up to three to five hours is imposed on you. Not to mention that at the slightest sign of a "complaint" (who knows which random asshole complained about a file?) files get deleted.
If you ever find a file you want, be prepared to wait hours to download it and have to solve stupid CAPTCHAs constantly, as well as having the (paid) membership repeatedly pushed on you while you just want to download a damn file.
Everyone knows RapidShare sucks, so why the hell do people still use this greedy website?
No wonder people call it "Rapidshit".