Ok, strictly in the interest of peace and goodwill to all readers, let's have a little try at explaining.
I suspect that in some of these discussions, we are not all talking about the same things, so let's try some pictures and work out what Jacob means by a rounded bevel and why some people might think it's a bad thing. When I first read about rounded bevels on here, I think I got the wrong end of the stick, but I now think I might understand what is meant.
Have a look at my first diagram. It's a cross section of a chisel. The black line is the short of sharpening you might get with a jig - it's ground at 25° and then honed at 30°, so you get two angles where flat surfaces intersect, at X and Y.
I've then superimposed an orange line, showing what I think a rounded bevel is. The difference is that the sharp intersections at X and Y have been rubbed away below the places where they would have been.
Taking away that extra bit of metal - which was never going to cut anything - is the 'rounding'. I really can't see anything wrong with it.
Down at the tip, the cutting edge is much the same, even if we're measuring the angle of a tangent to the curve instead of the angle of a flat surface. It's still sharp.
So why the apparent objections?