[teeray]

Hijacking threads was a problem on our neighborhood mailing list (the most egregious example being hijacking a welcome thread to complain about trash pickup). The solution was pretty easy: auto-lock threads after a week of inactivity. We found that on-topic discussion settled after about that long. People are then forced to start new threads. If there is something new on an old thread, it can be administratively resurrected.

[inigyou]

How do you do that with email?

[teeray]

Your replies are to the mailing list address (we use groups.io). The server gets to decide whether or not to forward your reply to the rest of the mailing list based on the age of the topic.