Writing takes a lot of practice. It takes skill, and talent! By talent I mean, you can be naturally good at it (but still require practice & skill), or you can be very bad at it (and no amount of practice would help you. In case you're bad at it -- you need to choose another specialization, a one that you're good at. Consider cooking? How about construction, medicine?)
Will AI take over writing? Yes and no, and it has done so somewhat, already. Generally, the best human writing is still better than the best AI writing. However, more and more the majority of the slop online appears to be generated.
Words are all the same and all are generally well-known. Everyone has the same access to words. There are even dictionaries and thesauruses and so forth, so you can have a copy of *all* words, and also a complete description of grammar or whatever. Yet, some writers and speakers are very, very good at using words. And some people are terrible at using words -- some can't even put together a single message. It is a perplexing situation. The good(?) news is that everyone has a fair chance. If you want to be a word jockey, noone can forbid it, and all the words are always generally available to you. It's a nice field to play in.
When writing, should you maximize the word count? And a similar, related question: if you are writing and you could add a word, but the text would be okay without it, so there is no practical difference between having that word there or not -- should you add it? I just asked myself this question recently and in my way of slow-thinking, I haven't come up with an answer. It takes more time than a day, for a slow-thinking process to complete. But currently I am inclined to say that the word should be there. If there is an optional, non-useful word, I spend the time and the finger action to add that word there. In the past, I have generally written tersely, and I don't consider myself a very good writer. So I need to see more words, I'm far from overdoing it. Some people have written thousands of pages, tens of thousands of pages. Until I'm there, I'd rather write more than less. I am almost confident that this will change for me in the future, once I become a better writer.
And modern (2026) youtube encourages the same, I think. If you look at successful podcasters, their speaking flows, they speak well -- otherwise they don't find success as podcasters -- and they aren't shy of words. They speak a lot. They speak when it is not strictly necessary. As someone put it, if you're listening to a podcast and you fall asleep, two hours later, you wake up from the nap and they'll still talking.
Using more words does't seem to reduce their popularity. One can deliver the spark notes along with their extensive spoken presentations or writing. In fact, youtube attempts to do that - with shorts that are automatically sliced from bigger pieces of content. Although I have to admit, youtube is doing a poor job, and the majority of the shorts are bad. I'm not saying insta is better - I think insta is worse. I guess I consider all of them to be bad. But the compressed summary, separate and alongside the main content, makes a lot of sense.