Originally Posted by
TheBeerHunter
Sure it would. Whoever agreed to do this would just need to be listed as the additional guest, say yes yes, OP is checking in later, etc.
The issue to me is, IMHO, who would be looking at FT and still be willing to give away stay credits/points to a stranger? I guess it never hurts to ask, but...

OP offers a 5k voucher in return for the service - I'm not even sure he is allowed to post this here. FT has coupon exchange place where people trade travel related things like points/RA certs etc.