we have very little information on black holes...actually we have speculations of it...its true that they appear after a big supernova and all cause we've seen it...(i think we did) anyway for were the things go from there we dont know but! we do know 1 things and hmmm i think Lavoisier or wathever said this ''Rien ne se perd rien ne se créé'' meaning something like nothing appears or dissapears...so thinking that the black hole erases stuff is probably not it...I sure is hell dont know what happens there....il let my imagination fly on this =)