They said it COULD happen, not that it WOULD happen on every single paint system.
I think the OP should listen to his own advice in this thread, especially with the drywash topic. It's something that works for you but not everyone else. To tell someone to just go out to their filthy car and wipe it down with a spray bottle and towels is not the best advice IMO.
What it comes down to is people find their own ways of doing things that work for them. If you watched me detail and then someone else with the same experience, tools, and products detail I can assure you we would do things quite differently but still get very similar results. I think people should make it known whether they are stating their opinion or their experience, but other than that it's fine.
Really no need for a thread like this IMO. It is basically say "I know everything, and a lot of you people are wrong." Sorry buddy, but that just isn't the case.