Not banned. Used all Druid CRs (demos for paid, actually bought Glad Suite Druid), was starting to test out Warlock CRs. Quested one character from 90-100, another 90-94, using Kicks profiles and Singular. Also leveled a lowbie from 1-24 using Singular. Have been botting for a little over a month now, was not online when the Tripwire event happened.
I would guess it has to do with a combat routine. If the routine is using protected LUA functions, it would be very easy to filter out botters from legit players. I'm not sure how prevalent this is in the popular CRs, but I would guess that several of them have used functions that have given them away. Perhaps the Tripwire event was them implementing a check for the use of protected LUA functions.