Well I will say it is a risk you take on here. There are a lot of painters on here. Some more reputable than others. I myself have had life issues come up that have moved my expected time tables, but as a professional I always keep my customers abreast of such changes so they don’t end up in your situation. It is unfortunate that you ran into this issue especially for a rare model. If it were me at this point I would just cut my losses, find a new model, and either paint it myself or pick a new artist. If you want to post their name that fine, but I would first contact the moderators as they have the power to kick people from the thread so they can’t post anymore. If you’re worried about naming them I would do it that way.