Welcome the Technical Support section. Help us in assisting you by providing us with a concise and descriptive elaboration of your issues. Be specific and if possible, provide us with a step-by-step instruction in replicating your problem.
I don't know why, but a new user automatically has got 72 user points. I registered two new users for testing and both have 72 user points. I looked in the configuration but can't find a reason for this.
Could you please check this? I don't have an idea how to fix this.
I think your issue cuased by "Submit JReviews Listing" user points setting, in that setting you set 15 points for each user if submit jReviews.. you can change it from Jomsocial configuration->User Points