As for the collateral requirement, I hope it’s only necessary in the beginning. I understand that you need to trust me, but I also need to trust you. Over time, I hope to establish a strong relationship and be able to offer loans without collateral.
Plenty of "trusted" accounts have defaulted on loans, so be very careful. Just look at all the threads started by Shasan in Scam Accusations board for proof. And unfortunately, I'm speaking from personal experience as well.