2 questions:

what's the point of on site VS off site
if you want to invest 3 BTC, why would you put 3 BTC in the on site VS 1 BTC in the on site and 2 BTC in the off site? you qre going to hqve the exact same earnings, with more risk, is there anything else different?
result of this: all the big/smart guys leverage max, if there is 1000 BTC in the on site, there is 2000 offsite and with the investment above you own .1%
if offsite didnt exist you would still own .1%. It complicates stuff but dont see any benefit. Except that the actual dilute fee becomes 6 instead of 2% (because everyone pretends to invest 3 times as much and pays 2% fee on 200% non-existing btc).

who is that 2 (or 6 however you see it) % fee going? distributed according to investors' onsite or total (on/off)site investment?

i like the site, but a lot of things are never mentioned clearly and that makes it kinda suspicious to me.