There was only one viable person who led the fray to discredit liver flushing. He is off somewhere now in the very distant corners of the inteweb ranting away. There are currently no viable arguments to the liver flushes. The battle was won a long time ago. Here and there people pop up to voice some concerns, but they are not serious and it is healthy for people to be able to do so.
Many thanks to the people who steadfastly and systematically countered all of his ridiculous notions.
He was also pathologically against Iodine supplementation and heavy metal chelation. both of which yield nearly miraculous results as the liver flushes.