Wipeout isn't bad to use every once in a while. There are times when you're cleaning with Hoppe's and no matter how many passes, you can't get a clean patch. There are times when you clean with Wipeout and you still get crud out using Hoppe's
I was shooting cast bullets in an Enfield with 2400 and I just could not get it clean. I'm talking probably 200 patches down the barrel using a brush, hoppes, and a plastic jag. I just oiled the gun and put it away, but when I picked up some Wipeout it only took 2 sessions before the patches were squeaking down the barrel and coming out white.
I do find that Wipeout isn't the end all, there are guns that I can get cleaner with just Hoppe's. There have been times where I've put a clean brush down the barrel using Hoppe's and picked up stuff that Wipeout didn't catch, even though the patches were coming out clean.
A lot of people may get excited over their patches being dirty, but it's really the lead and copper fouling one needs to be concerned with.