Can you explain to us why this would be a good idea....other than the fact that it is something you would like?
How will it benefit the company?
What is the likely cost to them? - They are, after all, designed as a profit-making centre for Telefonica.
i think we don't need it.because on community mostly members know each other by their user name and if you change it every year you need to introduce yourself again.and your community friends are not able to find you or msg you until you did tell them your new user name.
I support the idea of username change but once a year is a bit much given the complexity of linking a members giffgaff account and the community forum.
agree one time option to chnage should be ok, i but a chnage every year would mean that there would be hardly any uder nmes left and thy would be getting longer and longer to keep them unique