Maxxina: I agree. I re-wrote the post a few times before posting it as I was thinking about it.
The final result is too favouring for the "forgetfull". Read "remove from stairs" instead of "retire".

Anyway, the main idea was: remove people that are timing out to avoid others to abuuse them to climb. And to clean up after those missguided souls that decide to leave the site and don't come back and have entered some stairs before leaving...