Is this just me? I start seeing pattern. I got spike at the beginning of the month, then it slowly dies out and spike again at the end. Is this buyer behavior caused by subscriptions?

I would have thought that subscriptions were from the date you bought them not the calendar month.

Also aren't the downloads limits per day not per month ??

for me it has always been first week of month is worst, 2nd week better, 3rd better again, 4th is best.

But it also depends on where the weekends lay etc.

Someone said a while back that it is because end of the month is panic to get the jobs done, first week is the slack week because the jobs got done and there is plenty of time until the end of the month before the next panic.