The message is not optional!
This has been resolved. You can now share a piece of content without including a message.
Maybe it us optional since it pre-fills the box which you have the option to change.
It needs at least one letter in it...the denoted content is optional...perhaps you were looking for the ... optional-optional dialog version which is supported by many sites. The required-optional and optionally-required are too confusing for most people, so like most sites, esri adopted this option, since required would appear too draconian.
It is optional. You have the option to leave it blank, but it is required in order to go through. Very clever, ESRI.
I wonder if this is due to an Esri implementation or is this Jive related?
This is Jive related. We have nothing to do with this message; however, I have submitted a case with Jive. Thanks Curtis Price for pointing this out!
Retrieving data ...