Did the WCIA say to Jesus, "Adultery is OK; I'm a righteous and faithful Jew and believe God approves of what I do". Presumably she did not because she was aware that God er... does not approve of what she did. Neither did he condemn her but he did, of course. instruct her to stop doing it. And that would be consistent with the scriptures of the time which show that God did not approve of adultery, not at all.
Again, we are talking about Jesus, not the self righteous people holding the stones. And jesus did not condition his admonition to them based on whether this was the woman's first or four hundredth offense, he told them do not throw that stone unless you are without sin. And after he told her to "go and sin no more", he did not say to those self righteous people, but if she does, I absolve you from my previous admonition and you can cast all the stones you want. The proscription on casting stones (unless you are sinless) still stands
So I will withhold my judgment on the person in the OP, leaving it to god (you know, the one the woman says " sees inside our hearts" and "judges the good and the bad things you do"). You (or I or anyone else) may not approve of what she does, but so what? Jesus never said to approve of what the adulteress did, jut that those listening to him should keep their stones (verbal or physical stones IMHO) to themselves. You may choose to minister to her and encourage her to stop some of her activity, but it must be in the context of concern for her, and not just hurling the stones of public condemnation--indeed, that's just what jesus did in the account.