I actually find it strange seeing such thing that look like posting with a bot. It will be difficult to convince me that that is not a bot posting and even at that, base on the rank, posting several posts in a day and all posts spaced within 2 to 3 minutes, actually seem weird. The activities is less than 15 so I wonder how the waiting time was broken and allow such number of posts within a short interval.

I don't want to believe there is a bug with the forum software. But the truth is that the account will not last long in the forum if such posting style becomes a habit.