As a casual user, having your server (picked due to larger size) blocked by others due to poor moderating (assuming this is the problem with .world), will likely lead to simple abandonment of the platform. At least by those who are generally well meaning, but not engaged enough to learn more quickly.

I imagine the attrition rate from this alone will keep adoption low.

I'm willing to put in a bit more effort, but I'm in the same boat... Just chilling on .world, probably missing out on things I don't even know about, and I'm not likely to put in the time to change that soon, I have other problems lol.

If the general trend is to wall up when in disagreement, and larger servers collapse too easily under the weight of to many casual users vs dedicated mods (as selection pressure would tend to move more dedicated people to smaller more controlled servers)... Well hopefully the smaller communities can grow at a sustainable pace, while us casuals try to find the right one/s.