[nsd-users] Rate-limiting in nsd?

[Stephane Bortzmeyer]

People are proposing rate-limiting built into BIND, to defend against
some DoS attackes (a proposal
<http://fanf.livejournal.com/122111.html> and its implementation
<https://github.com/fanf2/bind-9/blob/master/doc/misc/ratelimiting>). 

What is the current thinking for NSD? (It is a truly open question, do
not take it as "this guy requires rate-limiting in NSD".)