Yeah, while I understand that there was a loss of customisation and that naturally the existing username tended towards people who likes the older style, I personally absolutely hated it to the point that I just couldn't get into Reddit at all until the update. It also doesn't really seem odd to me for a website to update it's UI once in a while (tbh, I'd be turned off by one that doesn't. Even the best UI today is still relatively speaking from the bronze age of UX design. If the best we have today is the best we can do I'll be sorely disappointed.)