if you want to keep line breaks in your post without having to remember to put <br> everywhere, you can use the white-space: pre-wrap CSS rule, like so:
<p style="white-space: pre-wrap">this is an example of speex
an audio compression codec
specifically designed
for the reproduction of human speech
</p>
which renders as:
this is an example of speex an audio compression codec specifically designed for the reproduction of human speech
some disadvantages of this approach:
- annoying and i wish there were extended markdown syntax for this but markdown is already fucked up enough as it is
- now you can't format your text with markdown :(
see also MDN: white-space, which details some other options you may want
also: @snippid points out in the comments that you can end a line with two spaces and it'll create a hard line break, which is possibly the worst syntax i've ever seen in my life. sadly i wish markdown had a built-in syntax with a clear start and end instead of requiring you remember to put something at the end of each line

![[text ID: I sell trash and trash accessories end ID] Text is next to an amazing anthropomorphic raccoon trash merchant. He wears a blue hat and a blue hoodie. Art by Tornatics on Twitter. [text ID: I sell trash and trash accessories end ID] Text is next to an amazing anthropomorphic raccoon trash merchant. He wears a blue hat and a blue hoodie. Art by Tornatics on Twitter.](https://staging.cohostcdn.org/attachment/b5ff0a3e-4238-4bab-b637-22f1b67d111e/Remmy%20Trash%20Sticker%20Animated%20Tornatics.gif)