Stylistic note: try not to assume that people you're dealing with outside of Wikipedia aren't intimately familiar with Wikipedia. It comes off a bit condescending.
I'm aware of WP:AGF, and I'm also aware of WP:IGNORE. You're selectively choosing which tenets to subscribe to: deletionism benefits nobody, because the opinions of the participants in the AfD (yes, opinions) are influencing the availability of information to everyone. Your actions are not benefiting Wikipedia, whether you want to lay claim to them or blame the Internet as you did in this thread. Rather than try to improve what was presented to you, you are pursuing an idealistic utopia of programming languages on Wikipedia, where only programming languages with a wide audience that you can observe get blessed with a mention on the site.
I don't have any stock invested in any of the languages you've nominated, but I do see the benefit of a resource describing them for people to find via Google. Some of the languages you've nominated are very new, and are finding a community - you've basically just issued a big "you don't count" to every single person that uses those languages. It has happened to companies I work for, too. I work for a very large contender in a specific market, which has had several "of impact" (to steal your term) media mentions including Dr. Dobb's Journal. They've been deleted from Wikipedia on more than one occasion due to not proving notability to the editor of the week that feels like nominating the article. It's a joke.
I find it really hard to digest that you subscribe so hard to the notion of notability (a very subjective concept, might I add), admit that your criteria for evaluating notability need improvement, then nominate languages and successfully get them deleted anyway.