I wish i could eat 2500 cals per day and maintain weight
I'm going to say nothing.....
Yeah, i think that that 2500 massively overestimates peoples activity level. I'm a biggish guy at 6'3 and 95kg and yet i would say that i would put on weight at 2000kcal a day and that's including short walks with the dogs twice a day.
I'm smaller than you (184cm) and similar weight (97kg), but I'm eating 3.2k cals to maintain, but I have relatively low bf and am pretty active. Also remember than more muscle = more calories used just by being alive. BMR increases with lean muscle mass.
The thing is, numbers are just guidelines, it's not fair on anyone to say - 2500cals is too little/high, without knowing their physiology, their activity levels, their gut health, their bodyfat percentage, their dietary allergens (everyone has them, but they don't manifest themselves evidently, e.g. dairy is awful for gut health)... there are so many factors to take in. Hormonal levels also affect how you store fat / expend energy etc...
So even though I'm on higher calories, it's just my physiology and genetic make up, and body composition and everything combined that means that that works for me. And that's where a lot of people fail, they take a generic piece of advice and don't look at the bigger picture.
However, I will caveat that with, for general weight loss, it's fine to be a bit more broad brushed, but transforming body composition is actually a lot longer process and far more involved.