It is possible that Mr. Spread was just sick and tired of the Fud and decided to back away to work on the coin. He could come out next week with the latest testnet version or even a full implementation.
Everything can possible. For example when I created PeaceBit thread, I had great idea, but then my friend coder trapped in to traffic collision and I had to return funds and close project...
Of course spread dev can just give a f*ck now or something was happened... you never know 100%.
It's really disappointing that we don't at least know what happened. The last few things he said were specifically about upcoming events here in the next few days. Plus his wallets are still intact. That doesn't sound like he had any intention of quitting. I really think he is backing off of the internet because there were so many problems. A few people even created hate threads. Which is completely childish in itself. If he is still alive there is no way that he has brushed all of this under the rug. He has incredible potential and the coin could really thrive. Just a log in from his account could jump the price.
* I was completely impressed by his ability and I am sad to see him gone for so long. If he left because he is frustrated then he should consider asking someone to be his public representative. That person could deal with the public.