I think you'll find that no-one cares about U 2.5 goals.. as they are usually "no brainers". Betting under 2.5 aint rocket science in soccer. People got a laugh... cos you seemed to be able to get the most simple of "no brainer"s of stuff wrong. Betting on soccer aint rocket science the way you do it. Its easy.
But the thing is... you have to invest a lot of money to make any money the way you do it... and not many people have the opportunity nor such disposable income to be able to do that.