The change seems radical to some. To others, the way knowledge is viewed and valued is completely different from their older counterparts. The definitions and perceptions of originality and intellectual rigor have changed and continue to weave together with the traditional.
An open-forum-type submission process versus the behind-closed-doors process falls in line with other binaries the internet has produced: newspapers v. news feeds, youtube/hulu/etc v. TV, and the list goes on and on. Of course, these things aren't mutually exclusive, and, like most other evolutions in society, people will marry the new and the old, for better or for worse.