[_delirium]

I do fairly regularly. I stumbled across it earlyish, so I was pretty involved in meta-Wikipedia stuff (mailing lists, Arbitration Committee, etc.) circa 2003-06, when the barrier to entry and formality was low.

Now, researching & writing articles on moderately-important-to-obscure historical subjects is something I do as an odd form of relaxation. I occasionally edit articles in my actual area of expertise, but that feels more like "work". Collecting a few sources to write a decent first cut at an article on a historical figure or event feels like recreation. Plus, I learn some things.

There'a also very little controversy and conflict compared to writing about hot topics and recent events, so not much wikidrama. People will argue over all sorts of things, but strangely enough I've never had an edit war over an article like http://en.wikipedia.org/wiki/Georg_Gradnauer or http://en.wikipedia.org/wiki/Giuseppe_Pasquale_Ricci. =]