Wikipedia policy is that articles must meet certain criteria, of which "notability" is only one. Were there verifiable sources? Was the article promotional? Was

Wikipedia policy is that articles must meet certain criteria, of which "notability" is only one. Were there verifiable sources? Was the article promotional? Was there original research in the article? Wikipedia has guidelines to ensure that the facts cited in articles are verifiable and accurate. These guidelines are overstrict by design. It's better to have some true information deleted than it is to allow false or promotional material into the encyclopedia. You don't cry when your patch gets rejected for failing unit tests. Likewise, you shouldn't cry when your article gets deleted for violating Wikipedia guidelines. If you do have verifiable sources and a version of the article that is factual, then it shouldn't be difficult to recreate the article in a manner that allows it to avoid deletion.