Sort:  

How do influencers earn these coins of yours?

influencers just need to install a browser application and make content in social networks (e.g. Twitter).

Soon we will launch mainnet... You can read more here: https://snax.one/whitepaper.pdf

What about on steemit?

Sorry, I do not understand, what do you mean?

Does that count, posting on steemit.com, to earn tokens?

Snax works over the most popular existing social networks. We are considering the possibility of supporting Steemit in the future.
You can find out more information from roadmap: https://snax.one/roadmap