I'm going to guess there's confusion over
- Paint Cleaners
- Methods of chemically stripping the paint
A paint cleaner is usually a lotion like liquid to clean the surface of the paint before applying a wax or paint sealant. This idea of procedure has been around long before the Internet and products like Zaino introduced the "idea" of chemically stripping the surface to CLEAN the paint before applying a synthetic paint sealant or coating.
Methods of chemically stripping the paint are doing things like using IPA or Mineral Spirits or the host of different chemical strippers from detailing suppliers or even washing the car using some type of detergent dish washing soap to remove any polishing oils off the surface before applying "some" paint sealants or coatings.
At least I think this is where all the confusion is coming from, people are thinking that a "paint cleaner", also referred to as a PRE-WAX cleaner with some type of product or procedure to chemically strip the paint.
People are over-thinking this and taking something that should be very simple and making it very complicated.
If a person compounds and then polishes paint, there's no need to use a paint cleaner after using the polish. The "cleaning" was done with the compound and polish.
If the paint is in good to excellent condition and the person doing the work does NOT want to remove swirls and scratches, then to ensure the surface is clean, they can use a paint cleaner or pre-wax cleaner to clean the surface before applying a wax or paint sealant.
I hope that makes sense...