> Though in general, each business may decide with whom they wish to deal, there are some situations when a refusal to deal may be considered an unlawful anti-competitive practice, if it prevents or reduces competition in a market.
So based on your own link, "refusal to deal" has nothing to do with this situation since stifiling the posts of world leaders is not anti-competitive, in fact, it creates a competitive opportunity for platforms that might offer better service to those users.
So based on your own link, "refusal to deal" has nothing to do with this situation since stifiling the posts of world leaders is not anti-competitive, in fact, it creates a competitive opportunity for platforms that might offer better service to those users.