[umvi]

I guess the point is that saying you are a teenager in the title can seem like an unfair way to game your post ranking by garnering awe/sympathy.

Lots of middle aged people build cool things too, but they can't pull the age card to boost their rank on the front page (at least, not until they are at the other extreme - like 80 or 90 years old)

[seba_dos1]

Not just that; plenty of teenagers build their stuff without announcing that they're teenagers too.

[hunter2_]

Is it truly an unfair ranking boost if it's highlighting a substantially rare circumstance? I think many people prefer to discover rare things.