I'd love to see a chart comparing all languages and their percentage of edge cases. In phonetic languages you can at least sound out and guess at the meanings of words with suffixes, prefixes, etc. In Chinese each new word gives no hint as to it's pronunciation, let alone thousands of homonyms.

What's the closest concept to OP's idea without it being eugenics?

Why? I genuinely don't know about the issues facing bluesky going forward and how they might be different than other competitors.

Maybe if some sort of spaces like group chat functionality allows people to randomly mingle? I guess that's just chatrooms

I'd assume teams may not develop proportionally to their challenges.