The scenario of the gay biker is much more likely to get the desired message across to the intended audience than a letter. If the family or friends that visited his empty home were hostile to gays or deemed it inappropriate, they may have just quietly concealed the letter.

Christopher Hitchens published an article shortly before his demise to reassure people of his views on atheism, lest any clergy or family get the urge to fabricate the good news of his deathbed conversion. For those of us that aren't writers for Vanity Fair a service like this could be useful.