Hacker News new | ask | show | jobs
by what 11 days ago
Why are scuff marks assumed to be from shoes? Why not bags/briefcases hitting the wall while leaning against it? Might explain the “implausibly tall”.
1 comments

That's exactly where most of the wear comes from.

I once had a conversations with a painter at a university. They do the women's bathrooms every year whereas they do the men's as needed. Women have nails and rigs and purses with metal hardware and big fancy buttons and clasps and stuff on their jackets.

I wouldn't be surprised if subway wear on the back wall is gonna be dominated by people carrying things. People carrying things tend to filter there because you can put them down beside you more securely and a lot of those people already have backpacks so it's nice to lean against the wall.