devtrackers.gg
Getting a bit confused why a manual check every so often on the BH worlds isn't being done, Jagex has shown they can have real time heatmaps during DMM, it wouldnt be hard to have a few people on staff check on them every so often for anomalous gatherings away from the standard Edgeville BH pking.
We do clear them out often but there's the whole rest of the game to take care of too, and I'm sure you'd really start to notice rather major issues if we applied your method to our way of working. It's worth noting that BH Emblems would be much worse than what you're seeing if we didn't do anything.