I wasn't very fond that someone just ripped my grf, be it pr3p or someone else. It took me years to gather all those hairstyles, but the actual work was to fix them when they weren't compatible with palettes or had floating heads, broken act, etc. which happens a lot, I'd say a third of them needed touch up of some kind.
In the end it's not a huge deal.
@Aeromesi I sent you the proof you asked for.
Unrelated side note the hairs start at number 24, because back when I started adding custom hairstyles (2007ish) the official ones stopped at 23, that's how long I've been doing this.