You too should have done the research for your own situation - and not blamed someone for advice You asked for. Some people are finding too much copper IS there issue (and what Laredo has/had to offer was/is very useful), obviously people like yourself are finding another issue with copper. Whatever it may be there is no reason to attack people on this forum whose only intent is to help out. You accomplish Nothing doing this.
Also, just because it did not work for you, DOES NOT mean it won't work for anyone else.
I initially felt bad when trying to remove copper, but I am now feel better then before, so clearly it has merit to me. It is also useful for others, but not for everyone.
We all need to be cautious, and find what works for us. And along the way treat each other with some respect, not overblown ego's.