Putting aside my obvious conflict of interest here, but posting 10 times a day doesn't really mean anything for some people. I recall at least one user but possibly more who would often just fire off like a dozen posts within an hour or two and leave for the rest of the day.
I think the more obsessive post count that represents a narrow range of interests would be like 20 - 25 posts a day. EHarding comes to mind. ahugecat as well. Both were/are prolific 40+ PPD users.
I suppose you have a point. I guess I'm referring to a specific kind of 10+ posts a day people.