@dansup
> How would you feel if I ran a centralized service for... the pixelfedApp, that would facilitate discovery via uploading contacts list from the app?

There are a few ways to do this for a decentralized network. Matrix identity servers are one model worth looking into. The blog post addresses some of the privacy gotchas they identified and fixed with it:

https://matrix.org/blog/2019/09/27/privacy-improvements-in-synapse-1-4-and-riot-1-4/

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