#[0]

I don't think zaps are going to replace likes, unless you're also going to filter zaps by your web of trust. Otherwise it's easy to boost your content with fake zaps. 

 Zaps are useful between the sender and receiver, but not that much as information for others. 

 I agree, zap dynamic does not exist outside of social media dynamics, parasocial dynamics, and often signal nothing of value outside of the two parties even.