Yes, I've experienced everything you've mentioned since the beta days of Ingress.
On a more positive note... after finally hiring data scientists and mobile device hackers, Niantic have been progressively banning Ingress accounts suspected of scraping and/or automating the gathering of resources and recharging of portals. The impact in my area, southern California, changed longstanding faction dominated territories into fragmented pockets that either faction can now control. Suspected "automated" supply chains are now broken and rule changes to Quantum capsules resulted in the slowing down of attacks and lowered volume/frequency of those beneficiaries.
How much of that fragmentation simply come from legit players stop playing Ingress? Over here the community notably shrank and people don't defend their home base anymore as strong (even in legit ways)
On a more positive note... after finally hiring data scientists and mobile device hackers, Niantic have been progressively banning Ingress accounts suspected of scraping and/or automating the gathering of resources and recharging of portals. The impact in my area, southern California, changed longstanding faction dominated territories into fragmented pockets that either faction can now control. Suspected "automated" supply chains are now broken and rule changes to Quantum capsules resulted in the slowing down of attacks and lowered volume/frequency of those beneficiaries.