[ate53]

> Multiple questions inside the same packet are quite common in DNS-SD based multicast queries.

mDNS is DNS in name only. Yes the wire format is mostly the same but the semantics are not.

> Note that technically, servers have to support TCP via port 53, too...but they never actually do :)

No? I haven't come across a widely used server implementation that doesn't support TCP in a very long time. What server software are you referring to?

> ...there are literally dozens of ways to fix this in a better way than disabling ANY completely.

As fanf2 said, ANY isn't ALL, and so it doesn't do what most people would want it to do anyway.