What's the purpose of having a death at the end? Is the poem meant to mock the fleeting and purposeless world in which those who are shallow enough to write on bathroom walls live?
The description provided is vivid, and truly expresses the feeling of a worn-out bathroom, although it seems more to portray sadness rather than what I would figure to be the message of a stall-writer: hate. I respect the way you've turned what may normally be written in an angry fashion and have construed it in a more retrospective light.
Interesting. Kind of like the tides that wash in and out. I've seen bathrooms like that, and I think it's kind of a reflection of life itself, that we repaint ourselves but are repeatedly washed out by encroaching chaos.