Have you ever bought a book from an author you only know via social media who privately messages you with a book ad? I haven’t. I find that almost as annoying as robocalls. While we want to be noticed, being too pushy can be a turnoff. Another annoyance IMHO are those who spam their book, often several times a day, as if repeating their message enough times will work.
When I have time to look at my Instagram or Twitter feed nothing annoys me more than seeing repeated plugs for the same book(s). I want to reply something like “Alright, alright, I saw it already!” Any interest I may have had goes up in smoke with spamming. Think about that when you’re promoting your book. Think quality as opposed to quantity.