Anything I am not 95% sure about I add a notability tag to or simply leave alone. There are a number of articles that I did in fact find interesting citations for while trying to decide notability. Napier88 is a good example of such a language -- the papers on it received hundreds of citations, yet I had never heard of the language. I've been working on an entire rewrite of Napier88 in my spare time, which has understandably become even more "spare" recently :)