Will never understand why some people prefer mailing lists to do development, it always feels like the most convoluted way to hold a discussion, especially if there are multiple topics at the same time.
It probably doesn't really change that much in this scenario but with a forum or any other topics-based platform you can at least just close and ignore these things without it affecting everyone else.
Because it is an open and widely distributed system that is difficult to take down or otherwise have an extended outage.
Usenet is probably better, but to a rough approximation, nobody has access to a usenet feed anymore.
Mailing lists allow people to use threads if they want (assuming nobody thrashes the threads headers by using terrible email software from Microsoft/Google), and also allows people to read from the firehose if the want. And there's plenty of threaded web views of mailing lists available for lurkers.
Show me a forum or topics based platform that handle threads as good as proper mail clients? Don’t mistake the poor HTML view for how managing threads with thousands of replies look like.
Local filtering is the key to ignoring threads you are not interested in. Depending on the client with 2 or 3 keystrokes you are ignoring the whole thread or this particular sub branch of it and automatically jumping to the next interesting, unread message.
Because ther don't have to keep switching from discussion client to discussion client or whatever tools the use for each project they are involved with, at the same time being distracted by adverts, geegaws, random emojis and other kinds of nonsense.
They are simply more efficient and more importantly censoring is done by the user themselves, not by politically motivated admins who ban discussions based on their ideologies and whims.
A good mailclient allows a skilled user a much more efficient communication than most forums.
> It probably doesn't really change that much in this scenario but with a forum or any other topics-based platform you can at least just close and ignore these things without it affecting everyone else.
True, external moderation is a benefit of centralized platforms, but a mailclient allows personalized moderation, which allows with a well organized list to only filter out anything you are not interested in. Usenet had the benefit of both, a centralized platform with moderation, and powerful clients for further personalization. Too bad it died for most usages.