I'm with Albert on this one.
If a system works for you then it works for you.
That's good, but to then point at a system that might be having an issue and start blaming the "high tech equipment" is a bit of a flaw in logic. You don't know what the problem is in that case. Removing the skimmer from a tank like that isn't going to solve anything.
The bottom line, a good skimmer does add value to a system. I, for one, could not keep some of the fish that I have, and also have a tank with a balanced nutrient load, without the skimmer that I do have. It works for me. I'm not saying run out and buy a skimmer because everyone else has one, because that's the wrong reasoning. The reasoning should be about understanding the purpose of a piece of equipment, and running it to acheive a specific goal. If your goal is being acheived without it, then by all means you don't need it. But that may not work for everyone. So the risk is that people may drawn incomplete or incorrect conclusions.