Yup, it's dark, alright...
Considering this IS a competition site, nothing but "woo hoo, it's WONDERFUL!" comments sure wouldn't help people improve their skills much, now would it? Only those not wanting to improve would be discouraged by any criticism...

Even the elves knew that there's always room for improvement.

Me present this for you: This site has rules & guidelines that you agreed to follow when you joined. There are other sites if you don't like them.

HA.., THAT S IMAGE DESCRIPTION.., N SOMEONE VE TOUCHED BY ME POOR ART..?.., IT S STRANGE ISN T IT..?.., HOW THE POOR ART LIKE MINE CAN TOUCH SOMEONE..?.., N IT S ME EXPRESSION DESCRIPTION OF THE IMAGE.., N IT S FREE TO EXPRESS THE IMAGE ISN IT..?...

CRITICISM S WELCOME.., DISCOURAGE S NOT WELCOME.., EVEN FOR THE POOR ART LIKE MINE.., HA.., CRITICISM S NOT DISCOURAGE.., THIS ART CONTEST SITE S NOT FOR DISCOURAGE OR TAKE OTHERS ART DOWN...

HA.., ME ALWAYS FOLLOW THE RULES N GUIDELINES.., ME ALWAYS FOLLOW THE MODS INSTRUCTIONS IF ME AM WRONG... HA.., ME NEVER BREAK THE RULES N GUIDELINES.., HA.., ME LIKE THIS SITE VERY MUCH AS THERE R MANY PROFESSIONALS/ MASTERS ME CAN LEARN FROM THEM TO IMPROVE ME POOR ART...

WOO HOO! Reminds me of the Pumpkin decorations we put up around Halloween, good luck author

I don't really get what you're mad about:
- comments discouraging authors ?
-stock sites that want you to pay? ( like those bastards from photoexpress who no longer give free stocks to new users)
- this site's guidelines ?
- the grammar of the English language ? ( you should see French grammar!)

Anyways, good luck with your protest, i would however take all these issues one by one:
one poor entry for comments , one entry for stock and so on.