I have had people just flat out ignore me, and not talk the entire time, but I'm not sure if any of them were bots. As others have stated, my only problem is when people won't listen to advice. I like to try and help people, but some people don't want to listen.

I had a DRG in Brayflox (normal) the other day that only used Heavy Thrust (and not always from the flank). I tried to give him advice on a rotation (the best I could with limited DRG experience). He even typed a couple of times, and would have simple responses like "Okay", but then would just continue spamming Heavy Thrust. After a few times trying to offer advice, I just gave up, and would move the mobs so that he would at least be on the flank for the buff.