Honestly, if you look at what he wrote and what happened in the last months, I think he just doesn't want to deal with all the trouble Bitskins generates anymore (money laundering, payment frauds, law regulations etc) and is tired of the project. Maybe they are scared of legal trouble.
I actually noticed the incident he is refering to in the post - someone sold hundreds, if not thousands of Vertigo and Overpass souvenir packages, all way below the price they cost ingame. I bought some as well.
But it seems like an excuse to be honest, they could easily refund lost items IF some bots actually get banned.