I hope you are exaggerating a bit to write that this would drive you away from the hobby. For one, who cares what the teenager down the block thinks of his booming truck system? In fact, he is more likely to become an audiophile (as he matures) than the guy who doesn't care enough about music to invest time, effort and money into a sound system at all. Sure, some people never really mature - but that's a whole other issue.
Similarly, there are those in this forum of various ages, in various stages of their audio pursuits, with various levels of knowledge, experience and income that impact their acquisition and use of gear. For those in earlier stages, we would not want to discourage them by being too pedantic, would we? Nor really wish to insult them - that can drive them away.
Even those of us who've been involved in this hobby for decades certainly do not agree on everything....OR KNOW EVERYTHING. We bring a lot to the table as a group, give the best advice we can, and it's up to the guy who asked for the advice to make his own decisions to pick and choose among various viewpoints (or ignore them all).
Sure, specs can tell us some basics about a component, but often in the audio world, as you know, one component will simply provide better sound than another which beats it on the bench. Ultimately, the proof is in the listening - and that is by nature a subjective process.
I believe one must balance the objective with the subjective, specs v listening. Stray too far toward one or the other extreme, and opinions may become rather dicey.