After the Xenforo debacle Internet Brands obviously is actively looking for new problems: Wikimedia sues Internet Brands.
Read the full story at http://blog.wikimedia.org/ and https://wikimediafoundation.org/wiki/File:WMF_complaint_for_declaratory_judgement_September_2012.pdf
Maybe CEO Robert N. Brisco should tell his team to provide better services to his customers (both vBulletin and commnities) than keeping lawyers busy.
It’s pretty bad when Wikimedia has to sue you to teach you what the Creative Commons License is about. Facepalm. Internet Brands is hell bent on manufacturing their own demise.
In the meantime, a former Wikitravel admin shared some insight how Wikitravel admins had to suffer due to the way Internet Brands works with sites:
http://xenforo.com/community/threads/wikimedia-sues-internet-brands.35952/#post-408964