Perhaps, but I don't think "failure to adapt to change" is a primary factor.
Granted, the "old days" of the Internet may have been more unmoderated and free-wheelin' and dealin', but there were also a lot fewer people online, and people could have intelligent discussion without need for moderators. Nowadays, there's simply a larger number of adolescent jerks online.
Then there was that group of twits who tried to bomb the forum with the scrolling picture of Jesus...and Eschoir, of course...and Toiletman, he'd have to have his own separate category...do I miss that? Only a little...