Back in the super old days of blogging, like 2004 days, we use to love pingback technology in blogs because it was an automated way to get a link from a relevant blog post on someone else’s blog post and get some attention. But quickly it because super spammy. So when Gary Illyes of Google said on Reddit “very very likely those pingbacks are marked worthless (meaning they’re ignored) on Google’s end” I would trust that.