There was extensive discussion on the talk page about criteria for inclusion and one of those criteria is that only software that has a dedicated wikipedia page or with citations showing notability should be included on the list. It doesn't matter that you know something belongs on a list, you need to show that it belongs on the list.
Which I'm sure is a reaction to self-promoters trying to edit the page in hopes of boosting their thing to prominence. People who don't edit Wikipedia have no idea how much of a problem spamming attempts are. This can easily lead to beleaguered editors who are inclined to stomp on anything that looks like it might possibly be spam. That's a terrible experience for well-meaning first-time contributors and I'd love to see it improve. But I get how they end up that way.
