I've noticed that a number of open source projects continue to use mailing lists in lieu of forums. I've personally found mailing lists to be cumbersome and unsearchable, making it harder to solve/discuss technical problems with projects employing them. Am I missing some inherit advantage to mailing lists or are they anachronistic?
Just to clarify, this isn't a "what good are mailing lists in general" question. I've just noticed that they are quite commonly used for software development projects whereas the rest of the internet seems to have moved on. So what is so good about employing mailing lists for software development?