Spoiler Alert — companies want you to not criticize their products

It’s always been in poor taste to reveal the ending of a book or film prematurely. If you see me sitting on the bus enjoying the sixth book in the Harry Potter series and you unceremoniously walk up to me and tell me the surprise ending that “Snape kills Dumbledore” (as was a popular meme back in the summer of 2005), then you are, indeed, being…