Where there are bad eggs, if you look closely you would notice that they are good eggs too even though they tend to hang out at the bottom of the ladder because the dishonest ones has overshadowed them but the real traders know them and utilise their services, ofcourse the CMC data cannot be trusted because there is so much wash trading ongoing in exchanges especially obscure exchanges that I wouldn't trade in even if they pay me to do it. But this isn't a direct fault of CMC, it's the direct fault of dishonest exchanges.