CCP missed another chance to actually fix mining proliferation by completely removing ore anoms and instead rolling everything into asteroid belts. Typical CCP.
Asteroid belts already have a depletion and replenishing mechanic so that you cannot mine them repeatedly every day with their full contents. You have to wait a few days for them to come back to their full yield. This would have fixed a lot of issues.
In addition, CCP could have reintroduced the ore anoms as actual signatures which hold significant ore amounts as an actual reward for prospecting work. Plus, certain systems would be much more valuable than others for mining since the number of belts per system varies wildly. You would actually guarantee that mining ship destruction would happen in those as they offer a lot more ore than others instead of “CCP-hoping” for more destruction.
Missed opportunities left, right and center in typical CCP tradition thanks to uninformed, illinformed and illeducated developers like Rattati.