It's not pointless at all actually. There is nothing on our web site to say that the customer will be mining with the same hardware for 5 years.
Of course, if you were more transparent:
Post pictures of your data center.
Post your pool mining info, hash rates and BTC addresses.
Post some hardware info, electric costs, efficiency, etc.
Since you are buying hardware with the BTC used to buy contracts, mining BTC with it to make the payouts, this info should be fairly easy to provide. It wouldn't expose your business model or your physical address and passport. No one needs to know that info.
Once you've done that, the ponzi FUD on this thread will (mostly) go away.