I'm curious how these portfolio created like there are some basis or vote or community.
Vote or community is for raw assessment of market sentiment, not for portfolio in my opinion.
Secondary indicators like these can be biased a lot and if investors rely on them, they will be more sensitive and vulnerable to market manipulations from game makers and can make bad decisions, hence lose money more easily.
Coinmarketcap has its portfolio tracker too.
https://coinmarketcap.com/events/portfolio/An open source portfolio tracker
Portfolio Performance [Open Source] - Keep track of your Crypto Portfolio!