If hideous weaves are the case, (and bad weaves are super rare) go in store and have them pull out 3 or 4 pairs. Then pick the best of the lot. Even that's a bit crazy imo.
Just keeping it real, Most folks doing that aren't doing it because of a bad weave. More so to find "the best" out of most of the typical weaves.
I need both L & R to match for the most part. As long as there is balance
And not everyone has a store that's close or even has the time to do that. Also if you wear an uncommon size it's likely that the store will only have 1 pair in your size... so then what?
Just because you aren't so particular doesn't mean that someone is a lunatic if they happen to be.