One could say the same about FB too though but I think FB is dying/dead. Only reason they are relevant is because of their acquisitions - IG, Whatsapp and messenger and people using FB login for sites. As a content platform, I don't think that many people use FB anymore.
I don't have Whatsapp but I do have messenger. Messenger shows me ads and I would even say they are more effective than the ads on FB. Does FB disclose how much they make in ads from individual sources?
