It sure seems that way. Brushthralls is a collective of very talented miniature painters who’s site has provided some amazing tutorials, and inspiration for the masses. Their focus has been on Warmachine miniatures, and had a relationship with Privateer Press for some time. They don’t go into to much detail as to why they are ‘retiring’, I have no idea what the big ‘C’ is. Take a look at their site while it is still up, especially their excellent tutorial section. They will be missed.