A member of our site has entered a birth date in their profile, and now wishes to remove it.
Unfortunately, entering anything except a valid date seems to be ignored. The best I can do is change the date to something incorrect.
Same problem for the "website" field: once I enter a URL there, I can't remove it, I can only change it to a non-existent site.
It would be really nice if it were possible to remove the information from a field.