I guess I'm repeating earlier posts in the thread but I think that the excess fiber will eventually catch up with you (although, yes, everyone is slightly different). Some say that hunger can be a sign that your body isn't getting the nutrients it needs and isn't just a caloric thing (modern soil is deficient, farming practices are "industrial"). Shoving fiber and fluids down will somewhat dampen this hunger. I guess many other factors play into our appetite (exercise, stress, alcohol, habit, etc).
That said, the diet guy I follow says that after studying many indigenous diets he has come to the conclusion that an ideal diet consists of some raw, cooked, and fermented foods. He says that some fiber is helpful for gut bacteria and to help with gut motility, but the amount of fiber recommended by many is way too high. There are anti-nutrients in many vegetables, so that "feeling of fullness" isn't necessarily doing people any good.
No, it's not going to "catch up with me", LOL. What you say is not supported by science, it's the opposite.
But believe whatever you believe in, just remember poor diet might catch up with you, son.
In the meanwhile I'm going to eat tons of vegetables, raw when possible: it's good for you and advice anyone do the same.
It's science, documented in studies...not some BS from twitter diet guy.
Lack of fiber and vegetables will catch up with you if don't eat enough of it, most likely: lack of fiber and vegetables is a major contributor to cancer and other diseases. And, by the way, people are adapted and fit to eat a lot more fiber then what most eat in societies that are ridden by autoimmune disease and cancer.
I don't follow any some "diet guy", I follow the science on the subject and I study that stuff for many years.
Probably since before some on here had learned to read.

Including sports nutrition, specifically.
I also follow my sense of comfort and health from what I eat and I experimented with more diets in my life than descried in this forum.
I'm old enough for a lot of things to catch up with me, look a lot younger than my age, leaner and more athletic that most people of my age, didn't have sniffles in 15 years, etc. What most of what Americans consider "normal" is grossly obese and happens because of poor diet that lacks vegetables.
Low in vegetable and fruit diets and low fiber diets are cancer-promoting diets, also.
High protein diets, too, are harmful and promote cancer and kidney problems (and prematurely aged appearance)
Oh and it's a myth that people's life expectancy only increased because of lower childhood mortality.
Just ask life insurance companies, they know.
Life expectancy at/after 20 y.o. is a well known metrics, and was ridiculously low in 1900. There's just one chart here, plenty more out there.