> illegal file sharing has never been permitted and we take great pains to keep it off of dropbox.
Which is great, except you are punishing the crime, before it even occurred. Remember use of torrents are not illegal per se, sharing files which you do not copyright of, and piracy is.
> there were no legal threats or any other shenanigans to the author or people hosting. (EDIT - No applicable. Read Drew's edit.)
DMCA takedown notice is a legal threat. Worse part is, its not even valid, IANAL, but do you own the copyright of the data or the copyright owner approached you to issue a DMCA takedown notice?
> it auto-generated a DMCA takedown notice to the OP, which as many pointed out here was invalid and particularly inappropriate in this case, and was absolutely not what we intended to do.
Please do not send legal notices, without lawyers reviewing them?