Blizzard doesn’t normally remove bots in a whack-a-mole method. That actually makes the problem worse, not better. If they are farming gold to sell for real $$$, Blizzard follows the gold-trail and removes the ill-gotten gains.
Post 24 in this thread gives a great description on why Blizzard just doesn’t remove a bot as it’s reported.
https://us.forums.blizzard.com/en/wow/t/dozens-of-skinning-bots-printing-gold-in-foxhollow-woods/776046/24