There a dozen or two dirt simple forum systems out there. If you think that Facebook is not bribing Gannett and others to use theirs, then you are truly naive.
LOL... Seriously, I have been in the game for a loooong time and Facebook is NOT hurting for views to the point of paying for it's use. I can literally plop that snippet of code on my website in 5 min.
Naivete has nothing to do with it...well, except maybe for you in terms of social media. Deal with it. Facebook is NOT paying anyone anything to put their stupid widgets on their page.