From a recent thread on
"Why kernel development still uses email": [1]
"This is one of the things that web-based forums have yet to get right. Email (and NNTP news) clients from 20 or 30 years ago are far superior in this respect, because they can intelligently deal with threading and folding. These features alone makes large conversations much easier to deal with than on web-forums.
To add to that, email (and NNTP news) clients even from 20 or 30 years ago have other powerful features that web forums have yet to catch up on:
- kill files[2] (which you can use to filter out unwanted articles/mails based on content or metadata such as subject, user, etc)
- scoring
- user-configurable anti-spam filtering or other "intelligent" filtering (such as bayesian filtering not just for spam/ham, but for
interesting/unintersting content)
- tagging not just on a site-wide level but at the client level so each user can tag messages/articles the way they make sense to them
- other advanced filtering and scripting based on any of the above
Web-based forums are just incredibly primitive compared to this many-decade-old technology."
[1] - https://news.ycombinator.com/item?id=15373179
[2] - https://wikivisually.com/wiki/Kill_file