Just now, i had to ask myself what to do when i were commenting on http://news.ycombinator.com/item?id=138249 .
Basically, i had two unrelated questions to raise for the same article. Should i have done it the way i did, asked both questions in the same comment or should i have asked them in different comments to branch two different discussions.
What is the etiquette?
I also do this with E-mail. For example, someone sends a message to a group asking multiple unrelated questions, I reply to each question in a separate E-mail (and maybe even change the subject) so the reply threads aren't confusing.