Why would you assume that they hold the alt crap they mine?
I never made that assumption and would always convert my mined alts with my rigs to BTC as well. This was merely for "store of value" reasons however as I would never waste my time supporting and profiting off of scamcoins. Legitimate alts are fine to leverage for profit though.
If you want to discuss an alt cloud mining contract that you think is wise to invest in go ahead.
No, he pushes scams with his other accounts.
Evidence?
The chance of vanishing in the thin air is applicable for each and every BTC company. So there is no point raising the concern only for www.cloudmining.website. But, u r accepting the fact that U can breakeven even at 15% difficulty increase with the rate they are offering and still arguing ? Now I doubt if u r posting just to pad up your post count to join a signature campaign !!! 
Just because many cloud service providers can pack up and steal from clients doesn't mean that they are all equally likely to. There are many ways to tell, and I have suggested one of them thus far, that a business is more likely to be a scam.
Of course I am suggesting that with that rate one could break even with 15%, that's what I wrote right? I am suggesting that new users should try and use a 20% figure as a fair approximation based upon past history and that this rate advertised here along with other issues brings in other concerns as well.
FYI-- I don't think it is wise for anyone to buy cloud mining from any company so it is safe to assume that I'm not some shill for a competitor.
P.S.... It is impossible for me to be trying to bump my post count, check my profile I'm at 14 which means any post I make until the next cycle doesn't effect my activity.