I did this because I know for sure that you are well aware about some campaign managers who are strict with the campaigns they are managing and usually what they required are 5 posts a day and if the posts are consecutively done, are they still choosing from those consecutive posts?
I do not think there is any campaign or manager out there that requires 5 posts per day. My guess is that some managers set a limit of 5 posts per day as a maximum, which is a whole different ball game. They do this to motivate campaign participants to stay engaged throughout the week. But let me clarify - this does not mean you cannot post more or less than 5 times a day. It is totally up to you.
As for burst posting, that is pretty obvious to detect. You cannot make substantial posts about different topics with a time interval shorter than what is required to read the opening post or the post you are responding to. Meaningful engagement requires taking the time to read and understand the content of each post before responding in a thoughtful manner.