"anyone talking about a proposed crime on the Internet fails forever as a criminal"

I realize this isn't your TRUE objection, just a bit of a tangential "Public Service Announcement". The real concern is simply PR / our appearance to outsiders, right? But... I'm confused why you feel the need to include such a PSA.

Do we have a serious problem with people saying "Meet under the Lincoln Memorial at midnight, the pass-phrase is Sic semper tyrannis" or "I'm planning to kill my neighbor's dog, can you please debug my plot, I live in Brooklyn at 123 N Stupid Ave"?

You can use Private Messaging to send me actual examples, without causing a public reputation hit. I can't recall ever reading anything like that on this site.