My assumption is indeed that the classification as "burst posting" should be related to low quality posts. It doesn't make sense to complain when someone makes many good posts in a row. Once in a while I forget to post a post, and find that tab back right after posting another post. That means I have posts just seconds apart, and there's nothing wrong with that.
My stance is the same too. Quality of post is more important but yahoo wrote about it already. He accepted those posts because of decent quality but he also emphasized that he need a longer interval between posts.
If a poster does not have a style like:
- Find topics to join discussions, then start to reply on those topics, time interval between posts should be 5 to 10 minutes. I believe it should be like this. Because it is not easy to find relevant topics to comment.
However, from a campaign manager's (advertising) perspective, I get that they want their exposure to be spread evenly throughout the week.
Spreading throughout a week is a fine and reasonable requirement.
Spreading throughout a day is not a solid requirement because one campaign has so many participants who are from different time zones. I believe this requirement if exists, is more related to post quality.