[aggie]

If you read the linked article you will find that he means it is resistant to non-bathroom activities such as using it for washing clothes. I'm not sure why that would be a big problem, but the design isn't intended to prevent the homeless from using it as a bathroom.

[stephenr]

Because homeless people should look and smell homeless, right?

[tartuffe78]

Probably more because using it for other purposes degrades the facilities, and makes it unusable for its intended purpose.

[Animats]

Santa Monica, CA, has SWASHLOCK, which provides showers, washing machines, and lockers for homeless people. That should be copied elsewhere.