People should give feedback to channel owners that overuse announcements. 

Send a DC. Tag them in cast.

Co-create the community you want it to be.

And if they are not receptive, leave / unfollow / create a new one.

Stop thinking of channels as canonical topics.

It's essential to be proactive in shaping the communities we're part of. Engage constructively with channel owners to foster spaces that reflect our values. If change isn't embraced, it's okay to move on and build something better. Every community thrives on collective effort and growth.