I did start another thread to debate this but noone responded there. I hope Behooveji does not mind this. At the picture that Rethink bro has put above, we can see a linga that clearly looks like a penis. But Shiva Linga in temples do not resemble that at all. So i guess it is more of something like a "self fulfilling prophecy" in these modern times where even some Hindus seem to be convinced that it is a penis.  The word linga actually in this context simply refers to as a sign of Shiva. Even Lord Rama is worshipped in this form in a Ramalinga temple.

http://www.mulbagal.com/avanitemples.html

This debate started only less than a couple of hundred years ago when supposedly missionaries pointed to this fact. I am all for freedom of religion but it should not be based on lies. Many hindus are not aware of the penis linkage even to these days simply point out to the fact that they were not linked in the first place.

By the way why is a penis standing on a yoni, unless it is upside down.