What follows is a very detailed recounting of what happened to Threshold's article. Sadly, this story is neither unique nor rare.
1) In September of 2008 Threshold RPG's entry came under attack. An editor bucking for admin powers (we will call him WA for "Wannabe Admin") and an administrator friend of his (we will call him AB for "Admin Buddy") discovered the vulnerable Threshold article and started poking it for signs of life. Minor edits and criticisms of the article were met with no response from long term editors of the article. Seeing their chance for an easy deletion and suspecting little resistance, they gutted the article and removed more than half the relevant content.
Eventually, a few original editors (OEs) showed up. The OEs were unhappy. They accepted some of the reasons given for the removals, like the a need for more citations, and got to work finding them. As the OEs found citations and references, they would add them to the article along with the old content that depended on them. Strangely, when the OEs did this, they would get banned for "reverting" or "edit warring." Some were labeled "sockpuppets" (alternate accounts) and were banned for that instead. If any of the OEs got annoyed by this, or accused WA or AB of vandalizing the article, they would get banned by AA for "failure to assume good faith."
Banning in this manner is completely forbidden by Wikipedia policy. Furthermore, when an administrator works on an article as an editor (making edits, changes, etc.), he is supposed to refrain completely from using admin powers when dealing with other editors. They are supposed to seek a third party. Surprise surprise, that never happened.
2) Once WA and AA had the OEs safely out of the way, an "Article for Deletion" (AfD) was proposed. This is a minimum 5 day discussion on whether or not the article should be deleted. WA and AB rallied their buddies to show up and vote DELETE, and even went so far as to comb through old edits of the article to find editors whose comments sounded like they would likely vote to delete.