A good writer never loses sight of the purpose of what they're writing.
If they write advertising copy, they understand that the aim is to highlight the best features of the product to the specific sort of audience they're aiming for.
If they write literary fiction, they understand that they should create a powerful experience that makes people think and show off their mastery of the written language.
If they write popular fiction, they understand that they should use accessible vocabulary and write a short, tight story that delivers on the expected tropes of the genre they're in and entertains the reader.
Bad writers get too wrapped up in themselves to think about the audience. They'll let their favourite scenes drag on and waste the reader's time to indulge themselves, they'll use inappropriately fancy vocabulary to show off how clever they are and exclude ESL readers on a popular light fiction focused platform with international readers like Tapas and when people don't read their work, instead of looking at whether what they're making and how they present and market it is appropriate to the audience, they blame the audience like, "Oh, they just can't appreciate my art because they're too stupid!" or they blame the platform like "Hmph! Tapas is trying to hide my work because it's too clever and challenging!" It's all about me, me, me.