I also post a lot less for if I can't feel I can change something I often do not try anymore with the internet and discussions. I just feel the style of the internet is different than it used to be and it is extremely "calcified?" (Is that the best word for what I am trying to describe?)
Calcified would imply the opposite to your suggestion that the internet is different than it used to be.
Calcification implies stasis.
I like the word ossification better btw. Both work though.