The main problem is that according to my understanding you can publish an ad with a link without actually proving ownership of that link’s domain, allowing you to “frame” the innocent domain owner for seemingly saying certain things (at least according to your ad).
I guess the solution here is twofold - either have the advertiser prove they own the domain via a DNS challenge, or teach users that anything inside an ad is not to be trusted and can be fake/malicious. The latter is of course detrimental to Shitbook’s business model but would do so much good to society.
Facebook is so fake and ridiculously 2 faced company that I have ever seen.