> I tend to be rather particular about this one specific thing, yes. Especially since my posts tend to average several thousand words in length and thusly contain quite a few paragraphs each (worst of all is when people write rapid-pace dialogue with double line breaks after each sentence - I have a rather hard time reading those straight since I keep losing my track and skipping over lines). We don't need a thousand fancy formatting options before the most basic things possible are available. 

The single like break issue is because of Markdown. When he has finished implementing the BBCode parser, Markdown will be removed. Thus, your single line breaks will be restored.

So again, perhaps you can survive with double line breaks while he finishes implementing?

EDIT: with a bit of googling, it turns out that you can use single line breaks by adding two spaces to the end of the line, then moving to the new line.

Example:  
New line!

[Source](http://meta.stackexchange.com/questions/26011/should-the-markdown-renderer-treat-a-single-line-break-as-br)