0.024% of the US signed that one, and it wasn't ignored. A response was given. Not liking the response isn't the same as it being ignored.
You also skipped over the part where the response given was bullshit boilerplate and amounted to ignoring it.
At that point, why have petitions at all? It's just handwaving.
"the response given was bullshit boilerplate"
Well I guess he assumed correctly.
If you really want petitions, start a real petition. The website is for something much more informal and you shouldn't get depressed just because 4chan isn't setting policy now.
And the response largely ignored the thrust of the petition. I.e. that the side effects of prohibition are worse than the effects of the substance.
All in all, the release of this code was probably for two reasons. 1) The developers liked what they built for the government, and felt that people should be able to use/learn from it. 2) Releasing the code with the readme it has shines a good light on Obama and helps his reelection efforts.
You just didn't like the answer. At least be intellectually honest.