Farcaster

zora, rodeo and interface all leverage public farcaster data to solve the cold start problem for their own private social networks, with their own follow & comment systems. 

Follows & comments in these apps aren't published back to farcaster.

is this a phase, or a broader indication of the long term incentives around apps leveraging social protocols just for GTM?

Shipped on farcaster: @larrybot, @qdau, @frames, @framesfun, /open-frames, farcasterchannels.com, farcaster.id, @mod, @search, @discove

Some observations:
- Interface born before FC was popular. IMO it's been high friction to rebuild your social graph there. 
- Rodeo is establishing a different "context" around art mints, following the same people doesn't make sense.

At Kiosk we're building on your FC social graph and composing with multiple protocols

I agree apps have an incentive to create a forked context and social graph, if they can pull it off and scale. 