I can't stand it when a chapter is just one big chunk without any paragraphs. Before I started posting fanfic on AC, I first read other fanfic, also to see how they made the paragraphs 'cause I wasn't sure.
I still got a feeling some of my paragraphs are too big, but on the other hand, I don't want to separate them into two paragraphs 'cause I feel like it should stick together as one. So, I just end up in an eenie meeney miney mo situation and in the end, it will still stick together as one paragraph anyway lol!
But a story with no paragraphs is a no-no. I don't even bother reading the first line.
At a Dutch BSB forum where I'm a member of, they post fanfics too. Some are in Dutch, others in English. But they don't insert paragraphs at all. And they wonder why I don't read them lol.