If one of founders was arrested, it doesn't mean that servers and bitcoins was seized.
If I was a cofounder or an admin with server rights, and saw the founder get dragged off like he was the Silk Road founder, all the while I was thinking we were as legit as GDAX or Poloniex, I'd probably crap my pants, and freeze the entire site.
Not run away with anyone's funds, but I wouldn't continue running it until our site's legal status is clarified.
Very pertinent ...
But once again, it's too much of a coincidence the update tweets just stopped yesterday evening.
It may be due to freezed communication between the 2 Alex's or between one of them and the rest of the team, while one of them is arrested? Who knows ...
Tried earlier to contact Karoline, the greek reporter firstly reporting the story on Reuters, questioning for any possible relation between the arrest and btc-e then I see in news that the idea became mainstream...