USDe dev most probably dumped his coins during the last pump and abandoned it.... His last post on this forum was on may 7th, which was 20 days ago.... Only bag holders remain now, all others escaped...
Doesn't look good
https://twitter.com/CoinUSDEI gather that thing keeps getting hacked. I would pay attention to here and their website, those are probably the best source of news for USDE and the developer.