how hard is it to write a filter on mastodon for
if (post visibility = follower only) and (post has mention of user you don't follow) then (don't show post)
@squirrel Hrm. I could add it to the back end as an option with a rake task to turn it on or off for a specific account.
@squirrel so I guess the answer is "possible but not easy" >.>
@squirrel further question: why is this not default behavior
Computer Fairies is a Mastodon instance that aims to be as queer, friendly and furry as possible. We welcome all kinds of computer fairies!
maple classic™ 
@squirrel Hrm. I could add it to the back end as an option with a rake task to turn it on or off for a specific account.