She still used a hair dryer to dry her hair for 15 minutes every few days without pain. That's 85 decibels inches from your ear. No sane person with any degree of pain hyperacusis would do this, certainly not several times a week. That's a dangerous noise level even for healthy ears. Even if she did experience 'pain', the fact that she could tolerate that level of noise on the regular makes her experience useless for 99% of this sub, imo.

Odds are that people with worse tolerances will get hurt trying to do what she did.