If you look around you'll see the signs...
-currency exchange section is slower then ever.
-posts are becoming more and more spam-like
-people are selling their accounts left and right
-the overall mood just doesn't seem positive anymore
To address some points:
The posts in certain sections are still high quality, even on reddit bitcoin you get a ton of BS posts.
More people have acounts with higher activity then ever before so the supply is up as time has gone by.
The mood is a little low overall due to the biggest bear market in bitcoin history lets not forget.
Another point would be the eco system has spread out so perhaps a certain % communicate about bitcoin on other platforms.