Best answer by Darran_OVO
Because you have to verify your email address when setting up your profile, it could cause problems if users are free to change it at any time.
We're aware that this will crop up from time to time for users so are looking at how we can improve that, but for now, hopefully it won't cause too many issues and users should just contact myself or a moderator and we'll be happy to help.
As and FYI - We had a lot of interest last week at the company meeting in your Mini Ark!!