In some places, usernames are used as part of URLs, for example in
admin/users/<username>. Some usernames can therefore cause routing issues:
- Register a user
- Login as the administrator, go to the users list, open the details for this user.
- Notice that you are on
- Reload the page. You get to the list of all users, since
admin/users/listactually matches this route.
Many other URLs like
users/account-created are safe, since
- cannot be part of a username.
Here, this is only a small annoyance. I’m not sure whether there are more interesting cases where a similar problem can be triggered, though.