It seems when ever I change my email address in Marketo and open up the community pages, it creates a new profile in the Community instead of just updating my email address. So, I have several profiles in the community instead of one. This is very annoying especially since Marketo seems to erase my profiles and activities without notice.
We are working on getting your profiles taken care of, so you can have all of your rewards in one place. I will keep you posted on my progress, and let me know if you have questions in the meantime.