I was considering only general knowledge that might help a homeowner stay out of trouble, such as basic AC concepts like wire/breaker sizing, Wire length and voltage drop, GFCI usage etc., but your right... It would probably devolve into bickering, and sometimes bad advice.
I worry about the do-it yourselfer that is likely to hurt himself, or worse his family by not knowing some basic concepts... That was me years ago...luckily we survived relatively unscathed.. and wiser. Others lost their homes.