Oh, 100%. Unfortunately the best strategy I think is to just ignore the mindless comments and pick and choose who you are going to have a conversation with.
Personally, I think your project is getting coverage not at all because of your age, but because it produces interesting results that people want to see, regardless of whether the algorithm used is considered cutting edge or not.
It's getting coverage [on the website of the company that provided the API that was used for the app] _because_ of the age , that's why the age is in the headline, it's a gift-wrapped marketing win.
This isn't to denigrate the work of either of the two kids involved: the program produced is interesting and fun, the encouragement is awesome, and they've lucked out with this publicity and should milk it for all it's worth.
Personally, I think your project is getting coverage not at all because of your age, but because it produces interesting results that people want to see, regardless of whether the algorithm used is considered cutting edge or not.