I get what you're saying, but I'm not sure if it's accurate?
Ad-supported networks have to do incredibly shady possibly illegal things in order to have viable business models.
Grassroots networks run by volunteers and supported by donations simply don't need to do this.
Commercial networks also have extremely low staff-to-user ratios compared to donation-supported, which is why they use moderation algorithms a lot more. Commercial networks cannot afford enough moderators.