Is that your forum really work the same in activity as this bitcointalk is working? I am asking it because I have saw two members on your forum both have registered on the same date and both were having more than 50 posts but one of them was having 28 activity and the other was having 35 activities. Can I know why is that 35 and not any digit like 28, 42, 56 etc like in this forum?
Yes. However instead of earning 14 potential activity every two weeks for making a post, users earn 7 potential activity per week for making a post. So the activity count for people with more posts than activity will go by multiple of 7 instead of 14 at TheBitZone.
For the case of 28 and 35, it is because the first person did not post in a week and hence he/she did not receive his/her 7 potential activity.