What should be so important as a person's safety is seemingly ignored by the font used in this warning. As a sticker on the inside of a subway door, it should use text that is alarming at the least. A loud, largely bold and uppercase type might do the trick, but instead, the lowercase letters and extremely large x-height detract from the reality of what the message is trying to convey. If you lean on the door and the door happens to open, you won't fall onto a fluffy mattress of feathers and pillows of which the font gives the impression. Instead, something severely harmful might be the result.
