@sheeeeesh3628 if I had to guess, it's because the paint can come right off. Using the soap and water you're more attacking the surface where metal polish I think the chemicals will react with some of the paints on the melts and take them off. I'm not 100% sure, I've always done the method in this video.
I really like the 4 side plate US title as opposed to the 2 side plate US title. Do you mind if I ask you where you got it? I've not seen this version in my searching. Great video btw!
What if your belt is really dirty? Like what if you were naughty with your belt? Like really naughty? And you need to give it a serious cleaning just to out your mind at ease. Have any tips for me honey?