When I post a message, instead of selecting something like "post", I am given a choice of "save" or "preview".  When I choose "save" it is unclear what that does, but apparently it "posts" the message.  So, would it make more sense to change the wording from "save" to "post"?  Seems it would be much clearer to the user.  Also, there is a message about "...do you want to navigate from this page...." which further confuses the user.