At the moment, there is no rule prohibiting deceptive titles for proposals -- that is, a title that asserts or implies the proposal does something it doesn't actually do.
This is unfortunately, as of today, a real problem. A proposal that does nothing but legalize and encourage funding of embryonic stem cell research should not be called "Promoting Research On Life In Foetuses And Embryos", as it is not "PROLIFE" as that term is conventionally understood (admittedly subjective), does not promote research on life in embryos, and does not have anything to do with fetuses whatsoever.
The only possible motivation for such a title for a submitted (non-joke) proposal is to fool pro-life voters into thinking this proposal does precisely the opposite of what it actually does.
The rationale for this rule would be the same as for the Honest Mistake rule. This game is more fun if proposals rise or fall on their merits, as opposed to lies or deceit.
The following is proposed text for such a rule, based on the existing text of the Honest Mistake rule:
Proposal titles must accurately reflect their contents. While embellishment, exaggeration, and ambiguous language are permitted, factual inaccuracies and misrepresentation are not.
