[dns-operations] Mass deletion of .tw sub-domains?

[Az]

One year ago, a .tw registrar NET-CHINESE announce a promotion to 
celebrate 2018 Asian Games.
They offer free .tw domain registration without any restriction for one 
year.
And now, the domains registered during that promotion is expiring.

Florian Weimer 於 2019/9/24 下午 05:37 寫道:
> * Viktor Dukhovni:
> 
>> Is anyone at liberty to shed some light on what transpired to account
>> for such a large change?  The deleted domains do look rather "random"
>> to me.  Did some sort of large-scale abuse get shut down?
>>
>> [ FWIW, below my signature is a lightly encoded sample of 200 randomly
>>    chosen deleted .tw domains. ]
> 
> I did some checks on a few of those.  WHOIS is still populated, and
> they seem to share name servers.  The names may be random, but they
> seem to have *something* in common.
> _______________________________________________
> dns-operations mailing list
> dns-operations at lists.dns-oarc.net
> https://lists.dns-oarc.net/mailman/listinfo/dns-operations
>