Read again. My whole point was that governments used to know how to handle a shortage, but they don't anymore, as evidenced by the pandemic. They let the market figure it out and you got a mix of both price gouging and scalpers.
And no, doubling prices wouldn't have done anything. Hoarders would just hoard more because not only was supply low, but prices were increasing, so they better buy it now rather than later.
If governments actually governed, this wouldn't have been a problem. "You guys are being unreasonable, we have plenty of toilet paper for everyone. Each person gets two rolls per week unless you can prove you need more until you calm the fuck down. We're also putting the toilet paper factory into overdrive to compensate for this stupidity."