Yes, the ADR has been so frustrating; if IRCC needs/wants this information, they should let us know up front when we submit our PR application rather than springing surprises, no matter what justification they may have for verifying requirements. However, we have no choice but to comply with any IRCC request; that's the reality.
Yes, I had a minor credit card balance in my POF when submitting the application to OINP. However, IRCC did not ask for POF at the PR application stage, so this was also a surprise. The only way I wrapped my head around this request was by assuming that they wanted to see where I was shopping to verify that I had maintained my residence in Ontario. Otherwise, it makes no sense that they want to see credit card transactions for 4 months!
Yes, basically, they got me (and a few others in this thread) to refill and physically sign, scan and upload all but the IMM0008 form.
Which stage of the process are you at?