I'm not an expert on how the social media make money, but from what i know it is created upon the information they gather (either personnal information or content, that they can then sell to advertisers or thing like that). So the more data they collect, the more they are able to sell i guess ? And i think that because fediverse already generates data for free (and will do so more and more), people in the business of selling this kind of data are eager to get access it Only my humble opinion, not sure at all if this is theway it works