I don't think so. He's on Twitter. He took a long break before. Then he checked back in on Nostr and said he was impressed with the progress. He'll be back :)

Oh I see. I probably misunderstood Jack's talk in one of the nostriga conf about Snowden couldn't make one of the relays work on tor and that we (nostr) are leaking too much packets. One of the threads on here mentioned that Snowden left due to privacy issue of Nostr. Hopefully he'll be back ☺️🤞