The Nomama Rule
So I asked my two 14-year-old kids about it. They pondered the issue for roughly half a second, and then made it clear I was never to write supportive comments, though I'm certainly fb friends of theirs and comment extremely briefly once in a blue moon. Obviously, these fledglings need to have it be clear to their fb friends that they can fly without any support. But then, the author in the example is not a teenager. He's an adult, and no doubt pretty secure in his ability to fly independently. He clearly hasn't told his mother not to comment. So...
So if Mom's comments are not a problem for our author, could they still legitimately be a problem for other readers--that is, other fb friends reading, since only fb friends can read? But what (on earth) would be the problem? A mom's biased? Well of course, but nobody runs their fb page like it was an impartial jury! Your girlfriend or boyfriend may comment, as can your circle of real-life loyal friends, your long-time ideological comrades, you fans, or what have you. So also, of course, if you're confident and secure, can your mom.
On facebook people use real names, but out in the blogosphere, how many moms comment under pseudonyms? My guess is--over half of bloggers get comments from their moms, using non-obvious momonyms*. Relax everyone ... it's okay! Actually, it's more than okay. Especially when a mom is supporting her atheist, gay son (as in the case at hand). That's not just okay, it's hurray!
p.s. I had to invent a whole new category for this post.
* As in, not "Mom" spelled backwards.