I discovered that Donuts recently reserved back tens, if not hundreds of thousands, domains. Huge number of domains worth registering got reserved. Also almost all good drops are getting reserved every day. Just checked 2,000 LL domains out of 200,000 two-character domains released in 2015: 722 of them got reserved, so you get the idea on number of reservations. Is it good for nGTLDs? I don't think so.