Believe what you want to believe lol ... it's been proven .... just the cleaning solutions they use at these automatic car washes is enough for them to eat through the clear coat if your finish is even contaminated and already deteriorating .... These clear coats are so thin which is why washing a car with dish soap is so bad for them, dish soap has abrasives that act as sandpaper, pair that up with all the contaminants you are brushing away you can get a mixture equivalent to 800 grit sandpaper ..
Now imagine the brushes at these car washes, you know they don't clean them every day or every week for that matter, you have all kinds of crap on those brushes, curtains, what ever else they use to "brush" off the grime off your vehicles ... all that is "sanding" away at your clear coat ..
But hey, another one that doesn't believe lol ... a local chain of car washes out here already has a class action lawsuit against them for this very matter, will it hold up in court, probably not, but fact is automatic car washes are bad for you vehicles simple as that ...