I would just like to propose an ignore/block button to be added.
This would be very useful, as if someone is being hostile, hateful, spamming, etc. you could easily remove those comments from your feed, without having to spam the moderators with extra flags.
It would most likely work in the way you'd expect, if you feel that you need to "ignore" someone's posts, you could easily click the flag button, then choose to "Ignore Messages from [username]". This would prevent them from sending you messages, and replying to your posts.
Overall, I don't see very much of a negative aspect to this, and it would definitely help to prevent spam and possible fighting!
Thanks for reading,