Post No Bill

This is the most useless sign ever. It's a funny form of bad-english. What does it mean? Nobody knows. Well at least not most of the people I talk to who live in the Philippines. It means nothing in Filipino, nothing in English.

The only reasonable solution I've been offered so far is that it means 'do not graffiti or put posters on this wall'. But what is the use of a sign that nobody understands?

What's the funniest thing about this whole thing? You'll see this sign everywhere - in every city, on nearly every public wall. Go figure.