Ya I've read the whole thread and the other thread, I gather from this that the painter was in over his head a bit but koopa just complicated things further by being an *******.
There is never a reason to be a jerk to someone unless they are a jerk first and in this case the painter supplied you with what you considered to be an inferior product and then you attacked him both privately and publicly. It reflects very poorly upon you. And if you don't want peoples opinions, don't post on a public forum.