How about "literati" instead of "tech-savvy"?

A recent link on HN was the archives of Reddit comments from pushshift.io; of the first year of Reddit (December 2005 to December 2006), the comment counts on subreddits with >100 comments were:

       115 ru
       129 de
       215 tr
       380 nsfw
       765 ja
       932 freeculture
       985 request
      1487 joel
      1784 lipstick.com
      2022 features
      4208 science
     31266 programming
    322776 reddit.com

Where "joel" was Joel Spolsky's programming blog. That's quite programmer-heavy. Some of the comments on "reddit.com" in 2005 were:

> "One thing I've noticed is that the bulk of reddit's content is usually IT-related or at least culturally related, while digg is more generalized in its content (perhaps this is a product of time?). My point is that it seems to me that the fact that the "who" uses the site has a greater influence on usability than "how" the site is used." -

> "In the beginning, digg was pretty much all tech-related links, and whenever someone posted anything else you'd get a flurry of "this is a tech news site"-type comments. As the userbase grows and you get a more diverse demographic using the site, it becomes less "elite" and expands into other areas."