Yeah it doesn't take into account muscle mass and activity level, A guy I played high school football with was like 5'9 255 but strong as fuck. I was always considered overweight or obese on the charts and shit but I am always rather active and have a fair amount of muscle. Last time I checked I was 265 at about 6'2" Yeah I know i'm fat but honestly it didn't effect me much but I am starting to diet and shit. Not for any shallow purpose but because sometimes I have a hard time just going up and down stairs lol I also have a family history of heart disease and back problems and walking around at 260 don't exactly have no risk lol. But honestly I am not aiming for any particular weight just to be in decent to good cardiovascular shape. 230ish is ideal for me to be by summer time, may be stretching It though.
Plus I was looking through my H.S weight training note book and noticed I gained a good 40-50 lbs since I graduated. I wasn't so much a muscle head but I loved working out and was a 3-sport athlete thus kept myself in damn good shape. I told myself that I was not going to let myself go. Low and behold, I graduate, get a job at Taco Bell, start college and BAM!!! 40 lbs bigger lol