The best way to post and get reader to appreciate what you write is to create a space every 3-5 lines.

For example

line 1
line 2
line 3
line 4
line 5

line 1 etc.

It's so much easier to read. Some of the post here post like a 100+ line paragraph and as soon as i saw that, my first instinct is to not even bother to read it. It's a pain in a butt and i'm sure quite a few people felt the same way too, but the decide to put in "more effort" to read it.

Really, how to use paragraphs?

It's a fair point to make actually. I'm not good at this myself, so I'll try and follow this.