I don't think they should add mod support and this is coming from someone who loves to mod games (both installing them and creating them). I think instead they need to create another team of people that adds QoL functionality every month based on what people want. Maybe it could be based on votes, IDK but I don't see them ever allowing mods, officially. You can mod the game, yes... It's technically against the ToS but Yoshi P said himself that he doesn't want the GMs burdened every-time someone gets reported for using let's say a DPS overlay. It's gray area and it's like using a calculator, excel, etc... I think he's right in not officially supporting it (too much of a headache) and just allowing people to do what they want without spying on what's on their computer given that people aren't cheating other players.