Wow, caught up on this thread. Rainy weekend and can't sleep so I figured why not do some reading. I've seen E of L recommend to someone on reddit who had their bike stolen to carry one of those CO₂ bb handguns to brandish at thieves - really don't have any respect for the guy after that kind of stupid advice that could get someone killed (or landed in legal hot water) and this thread hasn't done anything to change my opinion of him. Reminds me of a certain other guy out in Philly assembling what are essentially electric motorcycles with bicycle parts (complete with DT Swiss hubs with drilled out flanges to accommodate motorcycle spokes, rims, and tires) and posting videos riding his 120+lb machines on sidewalks and through red lights... not a good ambassador for ebikes when there's a big group of people out there treating them like motorcycles that are without responsibility or consequence.
I had seen an E22 frame being sold on ebay from Seraph earlier this year but it was marked as for an EP8000 motor and not an M620 - though that was kind of brought into question by some details in the product listing.
Actually here's a video from Tantan posted in July of last year showing the E22 frame with what appears to be M620 mounting - the same paint job I saw in the listing. Whether WW got burned by Dengfu or burned by the nature of the business over there it's a big bummer, especially if he put in any kind of effort to develop the frame as it is now or had any sort of contracts with them. I think the unfortunate reality of those open mold designs and the way some businesses operate over there is that if you make some tweaks to it and get exclusive rights to it with company A, company B can still try to copy those tweaks on that design and sell it to whoever will buy if they think it will be competitive, or even try to secure a unit and copy it directly with minor cosmetic changes. If WW did indeed have an exclusive deal with the frame manufacturer and they were violating that agreement, there would be avenues for recourse within the US that involve customs siezing the items in question. While there may be little the US could do about a foreign company violating the agreement they can certainly go after companies/items that are here that are party to the violation of contract (theft of intellectual property) if indeed the exclusive rights had been purchased and there's a paper trail etc.