This was actually supposed to be a direct message for someone. Sorry for the confusion.
This is actually a good topic for discussion.
Zello, by its own admission, has discontinued pushing Zello as a "social media"-type app where one could seek admission to the group and "join in the conversation" at any time, to one of strictly two-way and mass commercial...and even some emergency...communications, so the unfettered access to a lot of their content is limited.
Frankly, I'm surprised it hasn't taken off more than it has.