It would be a bold proposition, and I'm sure that others have made it:
What is your beef with Catholicism (whether it be in theory or in practice)?
That's right: what if there were an open forum for the airing of grievances? They must be aired somewhere--that is, if the aggrieved were honest and bold enough to air them. Anonymity would be a selling point, I'm sure, for those who desired it.
I won't lie: coming from the standpoint of a faithful Catholic, and a priest to boot, it is not easy to simply hear people out without the initial mental response...laced with no little suspicion. Despite these "judgment-free" times, I don't think this sort of "countersuit" judgment would fly. At least keep it to yourself, Father.
Am I making the offer? Is the objector willing to be heard, let alone to hear me out?