Your welcome. Points accumulate over many factors, and likely if you give out and peoples blocks change, chances are they are just nearing the fallover amount, and you have enough to push them over for their next block. Trust me Evie, you can't do anything wrong with the system... give as much as you want. Even as your reputation continues to grow, the system reflects this in those who reside with a lot of points, where hundred affect a user up to say, 500 points (6 blocks), then the system begins jumping in several hundred amounts to get 1 block, then thousand amounts, etc. It is a linear system if you like.