OK - I just found where the comment was made about "double spacing."
It was after one of my stories.
All I can say is that I write the way I talk - in sentences.
After each sentence, I take a breath that makes a space between my sentences.
When I write, I hit the enter key at the end of a sentence - once.
That makes a space between the lines.
This is the only forum I am on that does this; I noticed it as soon as I made my first comment, and it has continued.
I am not "double spacing" intentionally, but if you look at any other article or comment, you'll see a space between paragraphs.
I assume that's where the enter key was hit.
As far as I know, it doesn't do anything for points; I have no idea what others get for a story or a comment except what the rules specify as parameters.
I assume it's pretty much the same as I get - except that I probably get way more because my stories are soooo good!
It would certainly make for a large book, if I were ever to write one, but when telling a story I try to make a complete thought out of each sentence.
I'm sorry if you find my writing style hard to follow; it's not intentionally designed that way.