That’s not a repetition, that’s an attempt at a clarification. But it worked.
As to the 45 deg spread, well, us guys with HUGE ones just have to give 'em lotsa room. Besides, the women like it.
Don’t you girls? 
Probably not when they have to sit on the same bench with you and they’re crammed into a tiny space because you & your HUGE ones are taking up all the space.
But I could be wrong. Maybe they find it a turn-on or something.
I’ll say, as a woman, that I think the 45 degree spread is ridiculous and looks awful.
There is an old cartoon (by Kliban maybe) that shows a skinny guy walking extremely bow legged down the beach. One woman comments to another, “Ted’s boss of the beach now that he has BIG BALLS tm”.
Me too. I don’t imagine guys who sit like this have huge nuts (which is the opposite of a turn-on anyway), just that they are douchy. And besides looking really dumb, sitting like that plain rude and inconsiderate in a lot of situations.
I just want to be sure everybody noticed the winky up there.
Wow, why is that? I never realized the ladies cared about sac size.
Reminds them of pickup trucks.
Balls aren’t aesthetically appealing to me, and don’t do anything for me in other arenas. So I prefer them average-size.
The staff will not stand for this.
Well, a couple of times when I was sitting in exactly one position for a long time…well, you know how your leg sometimes falls asleep? Well, my girly bits fell asleep. That was a totally weird sensation. Then the “pins and needles” set in…
For real? More info, please!
And this, my friends, is why the poll feature was invented. Poll forthcoming.
And here it is: Big Balls, Small Balls, All Balls? - In My Humble Opinion - Straight Dope Message Board
Yes! Now I can check “Inspire thread about ball size” off my Bucket List. 
Baseball players used to reach down and “adjust themselves” while in the field.
Remember when Rosanne Barr sang the national anthem at a ball (teehee) game and grabbed her crotch and spit while doing so? Like that.
Anyway, at one time there was quite a fuss about it by christians and the practice was banned.
I’m not a sports fan, so maybe someone can offer more detail.
BTW; I blame everything on the christians.
Another guy here who has no familiarity with the OP’s phenomenon. Sometimes, in life, my balls need adjusting, sure; but it’s got nothing to do with sitting with legs together for long periods of time, which I’m perfectly capable of doing without discomfort.
One of the nice things about being a chick is we never need to reach down to adjust anything because it doesn’t get uncomfortable to sit. Sore butts aside, that is.
Well, actually, when I took a sculpture class that had nude models there was this one girl who looked like she might need to adjust things, but that’s outside the norm. (at least I assume. I haven’t spent much time otherwise looking at other women naked).
Hm, I don’t know about this. Maybe not from sitting, but there can be plenty to adjust/scratch/annoy you. Thongs, pads, panty liners, tampon strings, stubble…
ETA That doesn’t mean women DO adjust, in full view, however. A friend of mine had her tampon yank out o a water slide and, fully composed, she just whispered that she had to go to the bathroom NOW as soon as she was out of the water.
In what way inconsiderate? I mean, if he’s wearing a kilt, obviously. If not then I don’t see it.
If they are taking up more than their fair share of space, say, on a bus. Or any other shared seating space you can imagine: a couch, a plane, a subway, the backseat of a car, etc. Obnoxious as hell.
Also, these same guys often have their legs stretched out into the aisle so that others have to climb over and around to avoid tripping. If one hasn’t seen this behavior, one doesn’t get out much.
I blame it all on their mothers.