because every mining is uselss and full of loss and full of risk . there is always a chance to ran away the mining site any time without notice . hashocean mining is a best example of you topic that you have started .
Mining coins does not mean that you are mining with the help of cloud mining sites,first get that thing straight and if people are mining still it is only because it is profitable for them and if not they wont be spending their money for their equipments.