I think thief is a very strong and offensive word to be using. Yes, Joe has not been very responsive to updates concerning availability and the production issues concerning the accelerator cards. For those who have requested a refund Joe has made good, so there is no thief about it, if you want to cancel your order request a refund.
The Dawg
As an impartial observer, I dont think he did call him a thief. There is a subtle difference to the way it is phrased. It would appear from his post though that he has tried to contact him and has had no reply. Lets not be too quick to shoot him down for being concerned about his hard earned money.