There's been quite a few well constructed and thoughtful apologies circulating HN lately, one of which was Andrew Mason's apology for Groupon's Japan blunder. Hopefully, Flickr will pick up the torch, and issue a more official, and hopefully more well thought out, apology. After all, it's been less than a day since the incident.
Of course, the deletion in itself is inexcusable. I just hope Flickr steps up.