Okay, so the picture of a roll of toilet paper is clearly a joke since no one I know has a ton of toilet paper... or if they do, they just aren't saying!
Stocking up sounds positive, forward thinking and wise. Hoarding sounds selfish, negative and bad. I guess it depends on what side of the fence you stand on when describing what happens when you make sure to have extra toilet paper on hand just in case...
One of my favorite shows to watch is "Hoarders" on A&E. Its one of those shows that just mesmerizes me. ABC 7 News ran a story on man's house in San Jose that was so hoarded you could see the trash piled around the house on Google Maps.