When I see bots I always report them... I am a BTN and you always see them around the lvl 30 nodes that have the crystals and shards. I think I have reported one bot multiple times that is named Cao Cao... always obvious that it is a bot but it has been weeks and about dozens of reports and not by only me but by others too. So it is not only players that have to report but SE that has to follow up on those reports.