Since when is it a violation of FAR to come pick up a stranded friend? Or
deliver a needed part for a friend?
Ever since they came up with the stupid "pro-rata" rule, and the
"interpretation" (which I consider erzats rulemaking) that "holding out"
equals "commercial" (i.e. telling your college dorm you're open to
flying people) and "logging time" is "compensation.

who has been "convicted" of this?

I don't know. The database has recently been posted. It may be that
nobody has been convicted of this exact thing. However, the FAA has
made it clear to me on several occasions that this very thing would be a
violation and that were they to get wind of it they would prosecute with
vigor.

Jose
--
"Never trust anything that can think for itself, if you can't see where
it keeps its brain." (chapter 10 of book 3 - Harry Potter).
for Email, make the obvious change in the address.