I really don't know about the reasoning for the defamation of his character by others but as far as I am aware he is just a hard working guy who has gone to the wall like many other UK businesses due to this government's policies.
I have just managed to get hold of a couple of extra bottles of his dye (couldn't get any UV blue
) but it l;ooks like someone else is taking over the manufacturing and marketing of the product so hopeflly we should be able to get it again soon.
I am sure that there must be other dyes on the market that would work well without clogging but I can only give advice on my own experiences.