The answer to why would normies use a privacy enhancing product has been historically:

1. It’s as good as the no privacy product.
2. Somebody they care about refuses to use anything else (eg urs truly will only speak to their friends&family on Signal).

Now with advent of programmable cryptography and global scale decentralized databases the answer will simply become:

It’s better than the no privacy product due to increased competition driven by permissionless innovation with data.

I feel like these reasons also apply to a sufficiently decentralised social media protocol.

I guess when you have a large audience it’s a difficult balance between losing mindshare by being strict about where you post, and compromising on your values to keep your influence.

More people need to post exclusively on platforms that reflect their values.

Horticulturalist. Environmental hand wringer. Open source enthusiast.  

this would just lead to each platform becoming a complete echo chamber