I think it's in pretty horrible taste, personally. But then most kids reading this board have probably already engaged in the referenced behavior. I'm a serious outlier on this stuff.
I'm just poking a little fun at the "poophole loophole" Christians. It's a satire, not a suggestion. Of course there's some importance in maintaining one's virginity prior to marriage. Why, you may ask?
Without DNA testing, there's only one way to know that the boy who pops out nine months from now was put there by you: If you are the only one that's been in there, silly! But why the hell does THAT matter? Inheritance, of course, and that's a big deal especially in the past when titles were at sake.
That being said, anybody who has half a brain knows that once a human is ready (past puberty), they are going to do the deed. We as a society, because the big brain isn't fully developed when puberty comes along, have stretched “childhood” beyond the point where the body says it's ready to get busy. What's a couple to do in accordance with Edwardian social norms?
But for the folks who weren't part of the gentry, those who had little to pass their heirs, what made virginity so important? Frankly, imitation. The only virgins who mattered were the ones whose “issue" would inherit Daddy's title, and after a couple of boys were born, nobody cared. The old heir and a spare rule. The rise of the middle class lead to their imitation of the nobles in their marriage habits. Thus the concept of virginity mattering spreads.
In a world with effective birth control, when a goodly portion of the world has come to the conclusion that virginity is actually a crock of crap, we still have incredulous questions like this. Of course folks are using anal as a way to both satisfy what their bodies are screaming they're ready for, and their antiquated moral systems are hollering they shouldn't do.
Of course, there's always the question of what does your religion say about those moral systems. I guess what I'm saying with my meme is:
If you're doing anal to protect your virginity because of religious morals, then you aren't actually adhering to your religion's morals. If you're doing it for practical purposes, just use a damned condom.