I imagine these sites need to look/be legitimate in order to be approved to buy advertising on FB. Automating them from press releases is a cheap way to do that. FB does some rigorous checks on ad-sets - I’ve had to honeypot their process to debug why on earth they kept rejecting a site (was an automated scraper flagging it? Or was a manual reviewer rejecting it after clicking around? Was the content, user experience, or something else in violation of FB ad policies?): https://facebook.com/policies/ads
Anyways, if these sites want to buy advertising on FB they need to pass this scrutiny. Would be curious to see which urls/content on these sites MassMove sees as nefarious. What landed these sites on the list?
Edit: Oh I see, there’s a short list of site operators.