It works brah.
Who are you going to listen to for nutrition advice on weight loss, a skinny bitch that's always been skinny. Or a skinny guy that used to be a monstrously fat man telling you how he stopped being fat.
Just think about it.
I was 23% body fat last year. It may not be as fat as you, but it was still fat and overweight. I restricted carbs for a time, and then reintroduced them via carb cycling.
I am now trying to increase my muscle mass and I've been eating 3000 calories a day since September. I started off with a 40c, 30f, 30p diet and am now carb cycling. I have higher amounts of carbs on training days, and higher fats lower carbs on non training days, although my carbs still range from 50-150g carbs on non training days. And I'm no longer sticking to sweet potato only - I have white rice, brown rice, the occasional burger with bun and a favourite post workout snack is Ben and Jerry frozen yoghurt, plus 80g of carb powder added to my protein shake.
I've just had to increase to 3500 calories a day (350g carbs, 120g fat, 260g protein), because since starting a new program at the start of November I actually started to lose weight -
YES, lost weight despite eating 300g carbs.
It is not as simple as "carbs make you fat". The simple answer is "eating too many calories make you fat"
The more technical explanation of that would be "eating too many calories via the wrong combination of unhealthy carbs and unhealthy fats make you fat".
For someone looking to lose weight, then yeah, if they're massively overweight, cut carbs entirely. Once they are leaner, then reintroduce sweet potatoes and other healthy and use a disciplined carb cycling approach
Honestly, I have 3 months worth of hackers diet online weight logs that show exactly how much weight I've gained since I started bulking. I also have 3 months of MFP logs to go with it. Thanks to these two sources, I know exactly what I eat and what effect that had on my weight. Any weight gain that was too quick was down to the calories not the carbs.