I've received the email, and as an old Poloniex customer, I have the suggestion to make to the new owners: they should pay what they've stolen to their customers!
I'm not totally sure Poloniex has a new owner, though. Could be the same guy. He couldn't find any investor in the US, but he found one in Asia? I'm waiting for more information.
One thing for sure: nobody will miss Circle.
Maybe he's just brokering the deal, or a minor investor within the investment group who helps with the acquisition.
Also, it's unsurprising they couldn't find someone in the US, but found success in Asia (China, most likely). Chinese investors are always looking to invest abroad, but they're sometimes limited, either due to capital controls in China, or countries China has trade wars with making it difficult to accept money from Chinese investors.
but not as "poloniex". that's like when a shitty restaurant hangs up an "under new management" sign. that's not drawing anyone in.
It worked for btc-e/wex.