It depends really, you can post three lines and have it be perfect in quality just like you can post four paragraphs and make it perfect in quality too. I go for a concrete writing style. I write what's happening as seen from Teige's eyes with minimal interruption from her thoughts. Imagine if I were to write each thing that comes to her mind when she sees a human. My posts would then triple in size and capture 1/3rd of the current interest they gather. Boom, writing an interesting character takes a lot of practice. It's taken me 4 years to get to where I am and I still have a long way to go. Some of us take things more seriously because they are super passionate about writing, which is a good thing. Others are more relaxed because it's only a hobby, which is also a good thing.