Bretbart reported otherwise concerning the RollongStones a few days ago. https://www.freerepublic.com/focus/f-news/3859665/posts
If it is like Youtube takedown notices, they come from lawyers who collect money for finding “infractions”.
Prince was a rare musician who personally searched the web for infractions including his “unreleased” songs (he had thousands in his vault and they had to cut the lock off when he died to rape his tapes). There is a ton of stuff from Prince that wasn’t permitted when he was alive.