I have refrained from exposing xW's dirty laundry (adultery) before our church. I tried to act with discretion but it's come back to bite me in the tail -- xW has shown no discretion in inviting her OP to our church and to act like she's clean as the snows that fell on Saturday.
I now wish my church community had the knowledge and the nerve to confront such people. I suppose if they had known something they might have acted as Paul had advised, to confront sinners with the Truth and with love.