Earlier quoted context omitted.
And how is a response of "That's pretty good for a 14 year old" of any help? If the critique should not take into account the age of the creator, then why should the request for the critique mention it? Shouldn't everyone who shows initiative and a willingness to learn be encouraged through respectful and civil feedback, regardless of whether they're 14 or 40?
Just like novelists, there probably aren't any great fourteen year old developers. Just some are are less bad than others. And some who have a higher ceiling when it comes to developing their talent. Any critic worth a listen can tailor their message to their audience. Some messages which make sense for a fourteen year old boy don't for a forty-four year man - e.g. "stay in school." Children are not miniature adults.
We have at least one counter example here on HN.