Players, both good and mediocre, are pretty definitively restrained by both the written rules of D&D and the DM’s power within the game. They are of course, also bound by the social contract.
Some posters seem to be arguing that the DM should only be bound by the social contract, despite the fact that mediocre DMs exist, and that because of the amount of power they have, they can be more disruptive than mediocre players. It is argued that DM’s should be free to unilaterally modify the rules of the game. The DM’s vision of the world should be definitive and final.
Even further, certain posters seem to push back against elements that seek to improve teaching DMing:
- DM principles in PbtA and other games are dismissed because they constrain the DM, even where they reflect common DMing advice in both the D&D and the trad space;
- There is pushback against the D&D DMG being targeted at beginning DMs and providing advice on running the game;
- Whenever anyone posts that the DM should be making the game fun for everyone, there is invariably and immediately a response implying that by doing so, the DM is subordinating their fun to that of their players.