Is he taking your account as collateral, or is this going to be an unsecured loan? If it is the former then this would probably not be a horrible idea, however if it is the later, then this loan is likely going to be somewhat risky as it does not appear that onewiseguy has been trusted with this much money in the past.
Although to be fair, I do see that ecuamobi has traded with the OP in the past for larger amounts and the OP does have a number of apparent trades under his belt, although many of them are from untrusted people and many have been for small amounts.
It is the later. OP had the change to scam me 0.672 BTC on a previous deal and he didn't, he paid me as agreed. So I trust him for this amount.
1QEmgSL1qxGqvDicnnqKy6ng5e99bDnctq
I am Onewiseguy todays date 20th June '15, ecuamobi has agreed
to lend .35 BTC amount to be paid with
interest .38 BTC on or before the 23rd June '15
ILMIz1sNF4L4LEG2EIw3D8jITtjsPhmBRce7H2LM2HTzHm
Zjkz+6wHZOqWoN1N7A1LPs/P8mZx+L+J/O9DWCfXc=
Verified, address was posted
here.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
I've sent 0.35 BTC (TX 1d0a4b82c75bf54172945ba2b296c4390bb36ad0c14c79015e9570466c95839e) as a loan to onewiseguy.
Please pay back 0.38 BTC to my address 1CudaWA3yWPnpH9Ym7y2ri5BcdhTT4oNmn by 2015-06-23
Thanks,
EcuaMobi
2015-06-20
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.2 (MingW32)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=Yr+N
-----END PGP SIGNATURE-----