Many guitarists face the specific problem of getting good tone. They are frustrated with mediocre tone and would like to compare notes.
People are free to use whatever gear they want.
A systematization of tone and gear principles does not restrict anyone, but gives them more tools. Lack of clear principles restricts guitarists to groping in the dark and wasting money. It's usually frustrating trying to get power tube and loud speaker tone using simulators. I've tried to get authentic-sounding tube amp tone using simulators, and I've spoken with others on the Net. This site shares our experimental results.