Fiverr has just responded to me, saying that they can't find this vendor here, and thy leave me with no choice but to mention names:
The vendor in question is still online (possibly luring other unsuspecting users like me, to strategy calls), so I can't understand why Fiverr Support claims not to see them. The vendor is ignoring my Fiverr messages and only responding via gmail at the moment. Our last gmail exchange yesterday where I called them out on a possible Fiverr violation is attached here.
I am now putting together the entire email trail starting (Dec. 7th) which I will share soon.
At this point, they are probably also genuinely ignorant of Fiverrs standards (as I was), in which case it will be unethical for Fiverr to let them keep destroying the Fiverr experience for innocent users while our new business counts its losses.