And this is an actual rule at my day job:

If you're going to criticize someone else's work, include an example of how you would have done better, in your eyes. This does two things:

1) It allows the other party to see the positives of your approach, instead of only the perceived negatives of their approach.

2) It shows that you're taking the work seriously by investing your own time in it. Any amateur can take potshots-- go to the comments section on any media reviews site.

valguarnera@carrionfields.com