When anyone can create new Channels in future, will there be any mechanism to distinguish those that represent a genuine entity versus an  impersonation (e.g. a conference  channel by the organizing team or a protocol channel by the founding team). Or would the crowd self-curate it through participation?

Storytelling with data 
@osobserver; Coding http://grantsscope.xyz; AI + Product @Atlantis_p2p; Writings at https://rohitmalekar.in

How does that work with websites?

People are usually pretty good at coordinating authenticity.