It's a loan, not an investment. If you're not comfortable with the terms of the loan, please don't invest.
If you're comfortable lending some money to a guy with a great track record on a P2P lending site, then please do.
This is a lending forum and we're discussing a lending site. Sounds like what you're discussing is mining contracts. There's a separate section of the forum for that.
No, what I am discussing is you asking strangers to pay for your mining rig. Why not have a bit of pride and pay for a portion of it yourself?
You don't have a good record on BTCJam - you have a number of small loans you think will give you a much much bigger one. Scammers do it all the time. Probably why you haven't verified your credit rating on there.

Get bent, chief. If you went through the effort to look at my profile on BTCJam, you would have also seen my extensive investment track record. If you bothered to click on any of the other links I provided or just, I don't know, even google me, you would have found a pretty wide track path I cut across the web.
I'm not a scammer. Why are you so hostile? This has nothing to do with pride. Yes, I'm asking strangers to fund a loan on a crowd-funding website. That's sort of the point of BTCjam, in case you didn't catch that, genius. If I had the disposable income to buy it in a fell swoop without getting a loan, that's what I'd do.