Wasn't Rack1 finished? At least the last version I know of was 1.2.0, what (as I understand it) normally is a patched version of the finished project.
Against the rest I won’t and can’t argue, as I only know of one case for the grooming, were the supposed victim (Kabier) said that it did not happen, but one case (as I stated in another comment) does not prove a general standpoint.
[Edit:] I won’t ask for proof for the other things, as the other unfinished project became hard to find though they can still be found on some websites.