It’s not really fair to equate losing weight with maintaining weight. Like no duh if you’re already thin you don’t have to work at staying that way compared with having to actively lose weight.
But honestly, I don’t get why all these fats think thin people actually give a crap or even think about why they’re fat or care about them losing weight. Just like an alcoholic in the family, we all have fat people in our lives and most of us don’t expect someone to just wake up one day and start making better life choices, so most of us just accept that you’re always going to be fat and it’s not really our business anyway.
I mean, the only time a thin girl really cares about whether someone is fat is if she's choosing bridesmaids.