why do people insist, in A** shoving?
Allow me to answer that, but let me say a very important thought: alot of us here are anal retentive. 
So why do people insist? It is because they still have that noble aspiration that there is such thing as Truth.
That although it maybe irritating to hear, ideas that are plain drivels or BS which of course pollutes many of the threads here,  we cannot help but respect their opinion no? There is no A** shoving happening or whatever sexual metaphors you people could think of, there is just BS and its not being shoved, even with lubricants (metaphorically pointed out), its up to the the people to decide whether to accept it or not  and continue the dialogue or not. 
I know for a fact that RCRUMAN is doing his best, which is not enough, to explicate his beliefs no matter how incongruent it maybe, he is afterall with the presumption of pursuing 'truth.' so its upto you if you accept his tenets or not, i dont think he goes around shoving it up to people's a**. He of all people know that God destroyed two cities for that. Irritating it maybe, because he’s truth, he’s reality-frame, he’s perspective is far from that of our own, which is a perspective that keeps us comfortable.
Soul Doctor, although he has this delusional belief of the universe unfolding in his mind, that he is the chosen one to be given the knowledge of Reality through medititation/lapse of meal, he is still pursuing that noble point, that is what he thinks is truth. Its up to you too believe him or not, he maybe presumptuous at  times, most of the times, but what use is it to speak of  your truth if you do not have the confidence to talk of it among the unbelievers, no?
Nasyo, has his way of saying that Truth is lived. and that truth, is seen in peace. (Lenon is god 

 )   That in itself is a way of making his point, but because he is not as mystical as the other two he is passed as somebody who does not shove things in people's behind. But still its no different, he speaks on what he believes in, what he's truth is. And like them, it is a noble ideal. Lenon had an interest in  eastern mysticism, this is observable when the beatles was still a band, their later songs are riched in eastern-hindu-mystic underpinnings.  The Inner light is one of them, and when he recorded his own, he had Instant Karma among others.
Fingolfin, also speaks his truth. Like RCRUMAN and Soul Doctor, who attemtps to use reason as a tool for their truth, he also uses reason to speak his truth. They attempt to rationalize their truth, although incongruent it  is no different when Fingolfin explicates his truths of Atheism. Both stances fail, they are beyond the limits of reason, but still they speak with seeming authority oover the subject.  The noble presumption of Truth.
So allow me to answer your question Aztina by saying there is NO perversion going on, of a** shoving and what have you.  Its up to you to believe in it, or not. The world afterall is full of BS whats a few more BS ? You think they are a** shovers of ideas, then you have not met the Television and the newspaper either that or you do not know that they are the propagators of unreality and untruth.  Truth only presents itself to those who are worthy for her, there are only a few witnesses to TRUTH, such is why in our times, it has become more of a legend which would explain this paranoia of people speaking of their truths.  It boils down to your decision.  Do I speak the truth? Its up to you. Even with lubricants I wont shove, don’t think that I do. 
cheers!