I also haven't read all the comments. All I can say is this is exactly why I cut my hair shorter the first time (at least 15 years ago, maybe 20?). I was constantly pulling my hair back in a pony or a "bun" which was more like a nubbin because my hair is so so thin. It looked okay in front but horrible in the back.
So I told the hair stylist to cut it short enough I couldn't put it in a pony. And didn't look back.
In past couple of years since we've moved I've been trying to find a new stylist and my hair had grown long enough to put it in a pony again, I thought I'd try longer hair one last time. But sure enough, I kept pulling it back.... so CHOP it went again!
I am due for another hair cut and I know it because I can pull my hair back into a just barely pony right now...
If you think about it, a reverse bob is basically the equivalent of someone cutting off a pony tail.
P.s. if anyone cares I am trying to go natural! I haven't had my hair colored in about 5 months or so. I have no idea what my natural color is anymore so I figured I'd find out. I do have one completely white shock growing in in the front, though you can't really see it unless I pull my hair back severely like a Robert Palmer dancer.