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Is that muting them from the community though or from my personal account? I always assumed it was personal

there is a personal mute which is what that screenshot is showing.
But a community can do a mute And I'm assuming you want that to be more readily available to an admin or moderator When interacting inside of a community?

More ready at the post. Like where the dropdown list is, would be nice to have a Mute user in the community option.

Like making Roles & Titles available at the posts.

yes this exactly!