As a self employed businessman, I fully empathize with Dan and his predicament. We may need to start building a war chest of funds to pay for lawsuits against such attacks. Bringing attention to one’s past is spiteful, but to even hint that there is a continued danger is libelous/slanderous. Such attackers must be held accountable for their crimes. Maybe a few significant cases and $$ penalties will start waking some of these idiots up.
However, there could be a sliver of hope with this type of situation. One of the hallmarks of justifying the registry is that it brings no harm to the registrant. This, as well as, like situations clearly demonstrate the fallacy of that argument.