I use the weekday specifiers for org-read-date a lot when scheduling tasks.
For example, I frequently use things like "+sat" - the + isn't needed for
this, but I still do it out of habit ("sat" works just as well). Sometimes
I want to postpone tasks to the same day next week. I think of "fri" as
"the next upcoming Friday", so I tend to use that to postpone things.

Then I get thoroughly confused, because it ends up on the same day, and
then I grumble and reschedule it to either "2fri" or "+w". You see, if
today is Friday, "fri" gets you today, even if org-read-date-prefer-future
is true. It's the correct behaviour according to the documentation, but it
was driving me a little crazy, so I propose the attached change. It makes
"fri" and "-fri" exclude today, so if today is Friday, "fri" means next
Friday (procrastinate away!) and "-fri" means last Friday.

What do people think?