Did Anyone Receive Warning for Using AutoHotKey/HotKeyNet ?

[Apatheist]

Blizzard doesn't detect the software you're using (outside of known cheat processes.) They look at the behavior of your characters.

If you have multiple characters on follow, performing actions in a way that could potentially be key the result of any type of key broadcasting you're likely going to be banned.

Just using AHK/HKN for whatever reason on a single character won't be an issue (assuming whatever you're using them for wasn't an issue prior to the rule change.)