I feel like there's more and more of them recently.
I went to go level up MIN a bit and in the starting area outside of Ul'dah there was me and two other people mining regularly and two bots telemining around.
Then when I went to do my level 5 class quest the area I was at there was me mining normally and 6-8 bots telemining.
It was kind of disgusting seeing it happen and knowing that it's going to keep happening for a while -_-;