The problem is one of clear communication - if a date is written as DD/MM or MM/DD then unless the day is > 12 it is ambiguous - if written in the form YYYY-MM-DD it is not.
That's not the problem at all. The problem is that formats other than YYYY-MM-DD cannot be automatically sorted chronologically. Read the
sticky thread.
The ability to sort topics chronologically by the date the article was published is the only reason topics in the Press board are expected to have a date at all. To that end, any format other than YYYY-MM-DD is as useless as no date whatsoever. Is it really so hard for people to understand that?