This is a great discussion, and one close to my heart. These reviews of preview performances (especially the "review" posted 10 minutes after the curtain falls on the first preview performance of an out of town tryout of a show that still has three months of work before it even starts rehearsals in New York)have caused many to question what is right to do.
JRB's comment sums it up perfectly:
"It's about being respectful and educated about the artform and the process."
So many times these posts start out with comments like "I know it's in previews...BUT...and then goes on to rip a show to threads and claim it's junk and will never make it so don't even think about wasting your money when it opens 6 months from now"
I question what this poster knows about the process of working out of town, previewing, etc.
"My dreams, watching me said, one to the other...this life has let us down."