The problem is that a lot of the tools you need to run a Hackintosh may not be open-source or only provided in binary form (or you don't have a platform to compile the code even if it was open-source, so you'd still need to somehow bootstrap it first, either with a real Mac or with the untrusted binaries).

Running untrusted code from anonymous people on a forum, some of which runs at kernel level (like hardware drivers) is a no-no for me and should be for anyone.