This is indeed a problem I’ve encountered myself. The channel I created became way more popular than I expected. I was told to create a new profile for it but, too late, may main identity is now “spammed” by people reacting in private to my channel posts.
For my next channel, I created a new profile, as suggested. But this channel became more intimate and is a channel where, in the end, I’m a lot more confortable sharing my identity.
Too late…
This is a major problem for the wide adoption of channels. I listed it here: