For me, the graph before and after is excellent and you can notice that merit system is impeccable to prevent the spammer and alt accounts. Decreasing on the newly created users by 36% after merit's implementation within 100 days is very significant. We can say that merit system is really reducing the multiple accounts of people or spammers and focusing many members on creating a good quality post. On the last figure (ranking hindrance), you can see that most of the members need to obtain the required merit in order to rank up compared to those members that lack of activity if you use the old version of the ranking system. By the way overall excellent work zentdex.