confusion

Ok so i recently learned about hackintoshes and decided to make one myself. Here's the problem... When i first tried installing MacOS (after activating USB injection and ownership) i got a ''prohibited logo appearing''. Did a bit of research (correct me if im wrong) but apparently that can be...

So, a few months ago, I managed to install Yosemite on a USB Hard drive with roaring success. After getting it up and running and installing all the right drivers, the thing ran with ZERO issues, period. This stunned me because....well.....that's just not how it's supposed to be, right? Nope...