A new BR for every enter I press. The goal was to make the text in the textarea readable. Maybe that's why markdown uses 2 line breaks for every <br/> but I'm not sure I want to do that.
I still don't see a reason for manual linebreaks here, which would mostly be useful for things like poems etc, where you explicitely need to mandate a certain structure. For everything else paragraphs seem a better solution, especially compared to pervasive use for <br /><br /> to simulate post-paragraph spacing.
For developers that's right but when normal people are chatting hit enter they expect a new line. I can't assume they mean the new text to be a paragraph unless they specify it. I supposed I could add escaping for newlines but I'm not going to auto <p> either.
If you're aiming for the bbcode sector, sure. Bloggers etc. (i.e. the textile/markdown crowd) would usually expect more well-formed results.
Not sure whether that's a good demographic to aim at. Basically everything is better than bbcode, yet it's quite firmly entrenched after all these years (with a bit of tag-limited HTML and WYSIWYG as alternatives).
