Around here, as at Wikipedia, we are more interested in constructive comments. Don't complain unless you are prepared to do your share of the work of fixing the problem you are pointing out. At the very least, if you can't fix one problem, offer to do something else.
The problem with barging in and blurting out complaints is that it puts us off. It makes us think you came here to condemn, rather than to help.
Your criticisms can be constructive if they point the way to a repair or an addition. But if it seems like you are only building a case for dismissing the entire project, then that makes you too unpleasant to have around.
This idea was proposed by a contributor. It has the potential of being added to our Conservapedia:Guidelines.