"Some things are non-obvious and you don't go researching them. Many are not mechanics and hence are insensitive to a bad thread. if it doesn't come around every so often there isn't current nfo for the newbs to see".
They are obvious when the nuts are seized on. They should be saying to themselves "Hey, this ain't right. Let's ask someone or lets read up about it". Don't just go hammering away or heaving on the correct spanner until damage is done. It's their time and money that's getting wasted not mine.
And what "frailties" would that be?