A lot of big shows have been afraid to invite Bloggers to, say, week 3 of previews, when the show is set but the attendance is low. The reason for this is because of the fear that blogger reviews will pop up before opening date. So why is it that only once have I received an invite that says:

We ask that you hold all online/broadcast reviews until after 10:00pm on [certain date]. If you are unable to do so we are happy to offer you tickets to a post-opening performance on [date after opening].

Even my setup on too-lazy-to-migrate-to-a-better-blogging-tool Blogger can let me write my post now but have it not auto-publish until some time in the future. So really guys, we'll hold off on writing when you're inviting us. Promise!