However, I also do worry about double standards. For example, earlier somewhere someone suggested we visit http://en.wikipedia.org/wiki/Ochre where a barebreasted woman was used to illustrate the use of it as a body paint in Africa. I made the point that I really would like to know if men were painted and if the penis also was painted on men. Something tells me under that rule someone might have jumped all over me for "innuendo" since innuendo is in the mind of the behold. I actually in my mind had a heavy innuendo intention, but objectively speaking it probably didn't look that way. Others might have seen it as more of an innuendo than even I meant.
So bottom line, whether or not it's debated, i think a little more detail needs to be added to make it clear that strong and intentional innuendo is a problem.
Yes, sexual innuendo is a rather ambiguous term, although certain expressions obviously fall within its definition, and not just in the mind of the beholder.
Fred