Just remembered I never updated this (lol yeah, 5 month later ), so here's what happened:
Bought a VF-0D from EnderWiggen (this exact 0D reviewed here, in fact) with a friends/family payment. He had great communication and shipped the valk out promptly. Unfortunately, the valk was pretty clearly mishandled by USPS (it looked like something VERY heavy had been dropped on the box) and it arrived with a broken wing. I contacted Ender and he told me that since he had insured the package, he would put in a claim and get back to me once he heard back from USPS. I got a letter from the USPS about a week later confirming that the claims process had been started and giving me a claim number.
I would check in with Ender about once or twice a week to see if he had heard anything, and he'd always respond promptly to let me know that he hadn't received anything yet. After about a month and a half of this, I found out a way to contact the USPS Claims department directly, and I inquired with them about the status of the insurance claim. They told me that not only had they cut a check to the mailer (ie EnderWiggen) the DAY AFTER I had received that claim letter over a month ago, but they also confirmed that the check had been cashed.
Obviously, this was pretty disconcerting to hear. So I shoot an e-mail over to Ender and.. no response. Whereas before he'd always respond to me the same day, now he was strangely quiet. After a week or so of trying to get a response from him, I was sincerely starting to worry that something had happened to him, so I contacted the administrator of the website where Ender's 0D review had been posted. He told me that he'd talked to Ender recently and pointed me to Ender's Facebook, which indeed showed Ender was just fine with posts about going to the movies and pictures of plates of food.
So Ender had my money AND he had the insurance payout, while I was stuck with a broken valk. After I forwarded him copies of the USPS info showing that Ender had taken the insurance money, the review site admin posted my story to some Facebook groups while I (being a complete Facebook newb) just posted here. Suddenly, Ender starts talking to me again. Won't go into too much detail as this is already way too long, but Ender ultimately agreed to refund me my money and I sent back the valk. I was out the cost of shipping (which of course he didn't offer to cover despite effectively doubling his money ), but it was infinitely better than being stuck with a broken valk. HUGE props to that review site admin (aka Kuma) for helping me out, as I'm pretty sure Ender would have never spoken to me without the site admin calling him out on Facebook.
I don't know if that qualifies for blacklisting, because I ultimately had an OK resolution, but I would be wary of dealing with someone who tried to pull a stunt like that. Note that he continued to deny having received the insurance payout right til the very end, despite the concrete info I had that he DID receive it (maybe he had a family member living in his house with the exact same name, and HE cashed the check... but I doubt it ).
Obviously my error was using a friends/family payment, but I've never had a bad experience with a MW-er (have always used friends/family payments with MW-ers ) and Ender being a toy reviewer made me think he'd be a good guy too. I'll definitely be more careful about that in the future. Also, I learned that USPS will always send insurance claim payments to the person that initiates the claim. Both the mailer AND the recipient can initiate a claim! So don't let the mailer initiate a claim unless you've received a refund or something from the mailer beforehand.
Anyways, ended up buying a 0D off a surprise restock at HLJ.