i just take it as a given that all of us are laymen in most topics on rf. if someone truly is an expert they tend to either make that clear by the depth of their response or they ignore the topic because it isn't worth their time.
and most of us here aren't necessarily searching for truth. i know most of the time i just want to throw my 2 cents in because someone has said something i think is nonsensical. there's not a lot of trouble to get in when you're just shooting the shit. i hope people can take something away from what i write, but i'm pretty sure we're not here changing people's minds very often.