If you do a RAM upgrade at the same time and wish to install OSX via Internet Recovery mode you will run into dramas with any RAM over 2GB per slot. I am having to try booting via a USB and having enormous troubles with the Sierra installer. Going to try El Capitan and upgrade later.
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.