The point is no one can rank up to Senior Member, Hero member, or Legendary member by 5, 10 or 20 rounds of 50 merits like that. No one can successfully get it (from only one user or from some others) without being caught. Such cases if occur are seriously and will be treated in one way or the others.

I made 21 topics and sure my post quality and topic quality are much better than that post but I don't feel anything bad or wrong for me by looking at that. If someday, you wake up and see your account received 50 merits from one user who don't know, will it be okay for you? I think you will do feel it is okay and enjoy it, guys.