LLMs don’t have taste. Almost definitionally they can’t. They can parrot what they think other people think is tasteful, but they cannot have taste.
Taste is about matching things. If you stick Van Gogh's Starry Night into a blog post about profitmaxxing because you know it increases your discoverability by 0.02%, you have no taste. If you stick a pleasingly-proportioned image of a sailboat bobbing peacefully on a calm sea at sunset on a blog post about getting away from it all, it might be a perfect fit.