Hello, I'm Wyvernoid, administrator of DotA Allstars Wiki. I'm very interested in the development of MediaWiki and try to make my own contributions as well, although so far they're still minimal as I've just started.
For now my only contribution is the extension Extension:DataInvoker. I created it for use on DAWiki and hope it could be of use to other people as well. Suggestions to improve it are more than welcome.