Given the reality that a probation violation indicates both a criminal conviction of some type as well as current scrutiny from LE in at least some aspect how is it not appropriate?

While all of us might go overboard with paranoia from time to time I think this would breach whatever the minimum thresh hold for disclosure is.

Each hobbiest can then give that "element of the equation" suitable weight and act as they see fit. The fact that she did disclose it on her site is a big plus from my perspective and shows that she values both her reputation and her clients well being...

If you were on probation I take it you wouldn't disclose that fact?....or would you?