I got over 500 responses to my CL survey. Here are a few charts to summarize the data.
What CL implementations do you use regularly?
More than 80% of responders use SBCL. Clozure is next with around 30%.
What operating systems do you use with CL regularly?
Almost 80% use Linux. I was surprised that Mac and Windows are so similar. Most of the CL nerds I know use Macs.
What programming languages do you use regularly?
75% use CL regularly. (I kinda expected this to be 100%.) But I was surprised by how few responders are also using Ruby and Clojure, relatively speaking, and how many are using C.
How do you interact with other CL users?
I was a little surprised to see that almost 25% of responders claim not to interact with other CL users at all.
How do you manage CL libraries?
Almost 60% don't do anything special. And asdf-install, despite its flaws, is a semi-popular option.
How do you use CL?
Over 80% use CL for hobby projects, but about as many people use CL in a primary role for paid projects as in a supporting role for paid projects.