I fully agree with this. If someone writes in short intervals of time, you have to look at the quality of what they write to judge whether it is authentic burst posting or not. Obviously if they are too short, like on average 3 minutes for days and weeks, it's going to be burst posting.
Other things to look at would be the lenght and the page they are posting on. I've sometimes posted in short time intervals but because the threads I've replied to weren't even more than a page long, so if I post in a thread that only has the OP, another that has the OP and two short replies and a third similar thread I'm likely to use less time than if I want to reply on page 3.
It can also happen that if someone in a short interval writes relatively long posts, surely they have been looking at the forum when they were not logged in and already had a good part of the answer in their head. But this usually happens on an ad hoc basis. Nobody regularly writes long posts in short intervals of time and with quality.
By they way, did I actually burst post between here and here?
So for last 3 weeks I did very close to 400 posts. which is way more than i needed to get max payout .
Only 120 posts were needed.
I know I am a bit unusual as I am the post leader on the site.
I am sure you campaign manager (which is my manager too but on another campaign) is very happy about that.