Thanks! I try to pop in here when I can contribute something fun.
Agreed that she's adapted to the weight, because she has to. I'd describe it more as "accommodate".
I think she considered what she was getting herself into as much as anyone initially could. What she couldn't of prepared for is the practicality of something so incomparable and just...living in it. 24/7, as she says.
The opportunity and circumstances that led to her procedure are probably not going to line up again anytime soon, sure. Though, what's even more rare is not only how persisted, but effectively doubled down on quite literally making her boobs the front and center of her life. It is uncanny.
Put all that together, with the willingness to also share herself with the world? How lucky are we?
For the OF video, I actually haven't seen it. After dropping $60 for the other 2 Q+A videos, I'm a little tentative for this 3rd special. Just looking to be convinced 
Like you, I purchased all the Q&A videos; always looking to affirm things I have presumed or learning something new. I'm not really intrigued by those videos that are essentially bouncing boobs, but those where Beshine talks, expressing or showing different aspects of what it is like living with such enormous boobs daily. And whereas others put on a bit of a show, maybe expressing things their fans may want to hear, Beshine is honest and upfront in the way she feels, while offering some playful moments, some for the camera, some she obviously enjoys. Money really isn't an object, just purchasing what I may enjoy is my determining factor; $20 isn't much when I have seen other big implant girls selling their non-pornographic videos for $40 and even $200. As I keep saying, I believe the money aspect is more to limit the trolls.
Unfortunately, I have to agree that we will not likely see another girl obtain implants so immense that they rival Beshine. There are a few that have said that they wish they could have breasts that huge, but finding the company that produced them for Beshine has evidently been difficult, because I honestly don't believe money or desire are the issue. Still, I have wondered if they would love living with such immense and heavy boobs 24/7 the way Beshine does. When they are this size and weight, they dictate not only what you can do, but how you must do it. I have had extended conversations off-site with a couple girls that contacted me through the BEA that have professed an enormous desire to have breasts so huge that they compromise their ability to do many things, citing examples of gigantomastia and how excited they would be to be even bigger, like a couple examples where the breasts approached or exceeded 100 pounds. If I remember right, one cited a woman with 132 pound breasts that rejected a reduction because she loved how big they were. The urge exists, it is real, and both these girls were already well endowed, with bra sizes in the latter half of the alphabet. I wish there was a way they could achieve their dreams as Beshine has done. At any point, she could have stopped if the burden had become too much, but the desire to have even bigger breasts has always driven her further.
Do you also feel that making OF content is like a hobby for Beshine? Something to do whenever she gets the urge? She has every right to be immensely proud of her stunningly beautiful appearance, so wishing to receive some adoration or appreciation is only natural for anyone. You cannot do that on social media where immature trolls are always going to ignore the "if you can't say something nice" rule, and post their rude or crude remarks, so she has chosen a nominal pay wall and reserves the right to ban those disrespectful. Good for her.
As for the ramifications of weight that Sol and Malik have mentioned, I know and agree, that over time, this can warp skeletal features, possibly causing a degree abnormal wear, but this certainly isn't unique to one thing or another. Having worked in hospitals for decades, I have seen many examples. I know quite a number of people involved in running, weight lifting, and construction work that have experienced leg, should, and back problems caused by wear; anyone who is active may have or may eventually experience these thing, often requiring surgery. And yet, some do not; genetics is huge. But the thing is, like Malik alludes, you do what makes you happy in life; wishing for without achieving just causes regret. Beshine, for whatever boobie greed reason, wanted enormous boobs and she was able to make that happen, which has no doubt added to her happiness for years and will likely continue to do so. The same can be said to be true for so many people with different goals or dreams, from the triathlete to the 800 pound woman, from the body builder to the person covered with tattoos, it is all about seeking that which makes you happy and we should never judge others by their appearance past the obvious, but let their words and actions speak for the person they are. Seldom have I seen their regret for either the adversity they have to overcome nor for their decisions that led to pursuing their dreams.