Just wanted to address this - it's not possible to write 12,000 words in "2 or 3 nights". It takes about four hours to write a good quality 1000 word article. Hemmingway used to manage just 500 words a day.

You might see people uploading fairly long stories - but it's unlikely they wrote it in a couple of nights - more likely they sweated blood writing it over many months and sometimes years, and then found they could publish on devtome so uploaded their existing work.