If I employ someone like an ‘evangelist’ to post on HN to talk my book every day, is that more legitimate? Or if I’m friends with or share common interest with

If I employ someone like an ‘evangelist’ to post on HN to talk my book every day, is that more legitimate? Or if I’m friends with or share common interest with Or otherwise court an established taste maker and he or she boosts my content and features me in puff pieces to the exclusion of others, is that more legitimate? Flacks are inexorable from places of public attention.