How to know if a cloud mining is profitable?
It is always profitable for the cloud and almost never for the miner. Genius business model; dunno why people keep throwing their money at it but I guess they repeatedly count on people not understanding diff and mining - and it seems to work every time.
'almost never'... I guess the time when it's profitable for the user would be when they 'resell' that bandwidth? I believe you can do that on at least one of these places that charges the nosebleed prices
ed: re, post above mine, gg ref link