Some graphs showing posting activity on LessWrong through the years.
NOTE: If you’re reading this post on GreaterWrong, you can click on the images to enlarge, zoom in, and click through them all as a slideshow.
Comments per post:

The same thing, on a log scale:

Posts per month:

The 100 most prolific authors over LessWrong’s lifespan:

The same thing, on a log scale:

Whose posts have generated the most total discussion?

As above, but on a log scale:

Data available in a Google Docs spreadsheet. (Or download in CSV format.)
You can also download an Excel spreadsheet, which contains the above graphs and some intermediate processed data.
Edit 2018-11-16: Updated data; corrected some minor abnormalities caused by data retrieval issue. (If you’ve downloaded the data already, please re-download the corrected versions—the links are the same.)



Huh, this looks somewhat different from our own analytic graphs we've compiled recently, which look like this (the karma graph in the first below is mostly just inflation caused by the new karma system, so that doesn't really mean much):
In particular, the post over time graph looks different for Said's stuff, which is somewhat confusing, though I guess it kinda lines up. I notice that you do have some stuff in 2008, and it's aggregated weekly instead of monthly. We filtered out a bunch of stuff marked as spam on our side, but that shouldn't have even reached your side.
Here are also some graphs for number of unique commenters and posters (the vote spike is caused by some data import shenanigans, ignore that one):