I think that the problem is that there is a number of people who are simply a bit shy and afraid, which is perfectly normal. But they don't want to admit that, or want more attention, so they make themself believe that they got SA, which makes it far worse for them than it is.
It's as if, for example, they are at the ocean in the summer, and as they dip their feet into the water they think that it's a bit cold. And some people now just say "ah, I won't swim today", and others will convince themselves that they have some mental disorder and physically distorted nerves that makes them highly sensitive and afraid of slightly cool water, so that they won't be able to touch cold water for the next few decades. Instead of just taking a swim, realizing that it's normal that the water is cold at first, and that their body and mind quickly adapts.
And with that, they might feel better, because suddenly people are saying "awww poor you that must be horrible with your nerve system and cold water sensitivity, awwwwww" and they have an excuse for everything and whatnot. But in the end, the damage they cause to themselves because of the limits they voluntarily put up is far greater.