It's really simple to fix by asking an LLM to apply a style from a sample, so my guess is a lot of product will build in style selection, and some provider will add more aggressive rules in their system prompts over time.
I would recommend using guard rails to guide tone, phrasing, etc. This helps prevent whole categories of bad phrasing. It also helps if you provide good inputs for what you actually want to write about and don't rely too much on it just filling empty space with word soup. And iterate on both the guard rails and the text.
It’s not even just about the style. It’s a matter of respect for your readers. If you can’t be bothered to take the time to write it, why on earth should I care enough to take the time to read it?
Yes, but you need a style before :) But in TFA's author case, he actually had a few other blog posts which feel not LLM generated to use as an example, I agree.
But for plenty of applications it doesn't need to be your personal style. It only needs to be your personal style if you want to present it as your own writing. Otherwise it just matters that it's well written. A catalogue of styles would work well for lots of uses.
I mean, there are lots of people here that writes well enough that giving it some style samples and tell it to adapt the text to "this style: [insert post]" wouldn't be the worst idea.