I guess it depends on the servers.
I haven't seen bots farming fleece or snurble tufts for months now on Phoenix. Even bots beneath the ground teleporting between nodes are rare now (or they're botting nodes that don't have anything useful so I rarely see them).
On the other hand, the bots farming wind crystals/shards in the Central Shroud have been there for almost since the game went live and I've reported them several times before simply giving up.
What I do see more of now is bots that are likely farming instanced content. They're usually hiding at zone lines like the one from Mor Dhona to Northern Thanalan and contantly, I assume, popping in and out of instances.
