Ironic that you literally threw an ad right in the parent's face through this simple comment.
I'd guess there are people who would "rent" access to their active social media accounts to a company operating a bot capable of writing subtle "recommendation"-style comments. Sort of a merger of blog-comment-spam-bots and paid "influencer" posts.
Well... Hopefully :-/
I'm gratified that you thought it was a bona fide comment. I've never actually watched Bill Hicks.