[SkyPuncher]

Do you visit niche or speculate topics? They have far better communities than any of the default communities. My observation is comment quality scales with complexity of the topic.

It’s extremely hard to rebuild most of these high quality communities elsewhere. Often, it seems only the troublemakers/outliers are willing to move to another platform. They simply become a stain on the alternative platform.

[SecretDracula]

Yeah. A new platform needs to offer something fun or interesting in its own right to attract users. Otherwise it's going to be an island prison for the worse members of the old community.