@Setanta,
I left them in a book, if I remember correctly..
I see the no-paragraph type of writing most in the a2k relationships questions. Most often, the poster has a spelling problem or grammar problem too, so I figure the person is not clear on how to write with paragraphs. In the post I linked to, though, I was struck by how generally ok the post was, except for the lack of paragraphs. I wasn't serious re it being somehow 'gaming', but really perplexed about what seemed to me to be a choice not to use paragraphing.