I'll assume you mean me with that comment - its quite simple really as there was no reference to age anywhere on the site I had to make an estimate at the op's age, as I posted the first impressions and about me gave me the idea that it was a younger person. As I'm sure you're aware work created upto 16-18 (high school/a-level) is completely different to that which is created during/after uni, different life experiences, teaching standards etc - hell I know mine was. So to judge the work of someone who has just come out of high school/a-levels and looking for a uni placement at the same level as someone looking for a job would be unfair because the requirements (atleast in my experience) are generally completely different.
I'm even harsher with my own work, you can't do things half heartedly these days.
But, atleast in my opinion, I have given fair feedback on the site with suggestions where necessary. There's no point beating around the bush if the work isn't upto the expected standard, universities and businesses are now cherry picking because they want the best due to there being both a recession and (atleast in the UK) good money in being a high end uni.
You can defend your approach all you like, but age simply plays no role here -- not in terms of the advice you could offer or the courtesy you should extend. Einstein developed the theory of relativity while working as a patent clerk. Were this forum available then, would you justify lashing out at him because he did not work for an accredited "uni"?
In any creative endeavor, there is no easy way to discern who has the "gift" beyond the work individuals produce. Based on the work I saw, the OP could just as easily be 16 as he could be 46; you don't know. Offer the feedback/critique people request; if your comments work for them, chances are they may come back to you for the advice you want to give.