Hi DT here, I've noticed the last software has made it possible again for users to change their own usernames, but now with a new functionality allowing staff to approve or reject the change as it goes through. This has the potential to save a bit of hassle for everybody; however, in order for it to be worth leaving on it will need to not be abused. I request that all users continue to fulfill the general expectation of only requesting a new handle very occasionally, e.g. to fit in line with what they now use in most other places. The next while-ish will be treated as a trial period to gauge whether or not to keep it this way or change it back again (again).
