And for what reason exactly? You should develop a track record by completing trades and transactions on these forums with other members. Offering yourself as an escrow is not a good way to "build trust".
Actually, he can build trust if he process escrows successfully.
But I doubt this guy really want to build a trust, check his post history, with few unsuccessful loan request, I think it's a little bad sign.
I borrow just for a purposes of temporary because, trust starts from zero
So you're only taking out loans to build trust? That's usually a big red flag. You build trust slowly over time and you have to be very trusted here to become an escrow. Offering the service at such an early time looks really bad imo.