Possible variant of how the events could unfold:

- Poker Player unlocked the thread at 22.58 (for a reason known to him).
- naim027 received a notification because she was subscribed to updates and publishes a post on 23.00.
- Poker Player sees that the discussion turns into a holivar and at 23.03 blocks the thread.


Then Bob and Alice exchange mutual neutral feedback of a negative nature, and that's all, since both understand that any unreasonable red tag will entail reputational losses. Whatever it was, adding to the lists of ignoring each other seems to me the best solution if someone disagrees with someone.