Ah ha, but my profile will state that sending me a message is an affirmative act of agreement to the terms of service on my account, which state that you grant

Ah ha, but my profile will state that sending me a message is an affirmative act of agreement to the terms of service on my account, which state that you grant to me an irrevocable license to store, duplicate, transfer, sublicense, and republish any and all such content... which you, of course, under penalty of perjury, assert you have the rights to in the first place ;P.