Your thoughts on dyed corals

[DEAD_BY_DAWN]

After searching through some online fish and invert sellers i found this
http://www.marinecenter.com/corals/c...fingerleather/
i was surprised to find them selling artificially died corals,this has always been a issue with me,not wanting to surport such practises,but is dyeing corals truly harmfull,other than the fact the customer will be surprised when there once neon pink turns back it it's normal brown colour ?