When you accept a member into your faction, you receive 1 XP.
When you deny someone entry into your faction, you receive 1 XP.
So what happens if you deny someone entry, and that same denied person asks again, and you deny that person again? Do you get 2 XP because you denied a person twice, or do you receive only 1 XP because you once denied that person entry before?
If it is the first option...isn't that something that can be abused? I mean, I could ask a random friend to constantly send a join application, while I constantly deny it. It would be a tedious measure, and it won't look pretty in the faction events (unless of course I am the only person that has the power to view the member list), but if I put my back into it, I could imagine getting roughly 300 XP per hour, and 7200 XP per day (Not saying someone would do this for 24 hours, I'm just presenting the numbers).