I'm not sure I understand this whole argument about whether fan cards can be as good as official cards. Even assuming, for purposes of argument, that they can't, they should still be made as good as possible.
For what it's worth, Horatio, I don't think anyone here is saying, "Your card isn't as good as the official cards, so it's a bad card and you should feel bad about your skills as a designer for making it." I think they're just trying to say, "Here are some ways you can make your card closer to the quality level of the official cards." Even assuming that some people can make fan cards that are as good as the official cards, that doesn't imply that other people should feel insulted if they're given suggestions to make their cards more like the official ones. If you look at the more established fan sets, there's a lot of criticism made of them, too, and if any fan cards are as good as the official ones, it's only because their designers got a lot of feedback (and did a lot of playtesting) and repeatedly adjusted their cards as problems were identified. In fact, if you look at the Secret Histories, you'll see that many of the official cards (especially the more unique ones) did not start off being as good as official cards, but needed several iterations of changes to be publishable.