@ajroach42 I think in the Geocities context, the last sentence really hits this, I think that "GeminiCities" would need a few good "selling points".
For original GeoCities I think that was mostly three items:
Being able to express your opinion and/or fandom(s).
Able to do that in a very unique graphical, extroverted manner.
Connecting with people doing the same.
Obviously the 2nd one won't fly in Gemini. (And apparently is a lost art, as even "creative outlets" afterwards, like Tumblr or TikTok are increasingly constrained)
So, different criteria or more focus on the other ones? With the current popularity of Gemlogs, it seems Livejournal would be the closer "old web analogue".