I had no doubt that the anomalous behavior would follow me, Jon, but, since you asked, I was obligated to report back...
I was correct in my assumption, but many thanks, anyhow, for asking, because I learned something along the way...that the anomalous behavior occurs
only if I've allowed TurboTax to call home looking for updates; if I hit deny when Little Snitch asks for permission the deleted cookies don't reappear.
[shrug]Got me beat.
[/shrug]