You can have as many addresses as you like and receive payment to different addresses. This is not a valid proof.
Here it is ::::
-----BEGIN BITCOIN SIGNED MESSAGE-----
I am SpreadBit from bitcointalk.org and today is 2015.06.27
I lost my account
<17Y562iYMACaw4vyRYEcNmYjgzD3kGZDi8>
-----END BITCOIN SIGNED MESSAGE-----
Corrected.
-----BEGIN BITCOIN SIGNED MESSAGE-----
I am SpreadBit from bitcointalk.org and today is 2015.06.27
I lost my account
-----BEGIN SIGNATURE-----
17Y562iYMACaw4vyRYEcNmYjgzD3kGZDi8
Gwla1YHJjfdsLViFUmsa4aiTuyxhBRlQGQOHcX7SnSw1IYcTEmw/hac2muGvVGS89zCeDNQmywfu/w8Uapt9fvI=
-----END BITCOIN SIGNED MESSAGE-----
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