It seems though AFAICS, that the customer in question is not fully convinced[1] that this incident will not happen again. Are there going to be any concrete steps taken by Hetzner for this kind of error to not be repeated? While I doubt the customer is ever going to return back to your hosting at this point (and it looks like Hetzner was just going to be temporary for them either way anyway while they find a more permanent hosting service that is surely friendly to them and their kind of content, this incident just seemed to accelerated that eventual transition), it's definitely still worth considering it for others who haven't moved away and are now wary about false reports effectively taking down their sites (drawn SFW yuri/lesbian content is pretty common to be stored, whether knowingly or not, on fediverse instances hosted by your service).