I do feel like the lack of action towards even the PvP hackers is strongly suggestive of some underlying problem with how they go about screening for cheaters.

If I had to guess, it's overreliance on whatever flawed detection "tools" they're using due to their low staff making in-person investigations for every single cheating report unfeasible even though such investigations would readily expose both the hackers and botters alike.

Which is why I feel like they seriously need to outsource investigations to the GMs since we'd at least have a few people monitoring each DC that way.