As a result, all delegation users were considered bots by default and deleted. Similarly, accounts with more than 50 domains (highly suspected of being automated) were also deleted, as were those that were not linked to a valid email address (this criterion was used to delete old inactive accounts). 

不管你啥时候注册的， 

只要是改过delegation的都删
超过50个域名的都删


In the future, which I hope will be soon (but I can...