ickplantYSK these e-mail tips
RagingNerdoholicTo be honest, I find most of these passive aggressive and patronizing.
Most? I can definitely see “when can I expect an update?”, that one’s terrible. “It would be best if we” sounds pretty self-assured without a modifier such as “in my opinion” (which is what the original option was doing). “Nice catch!” is also a bit too honeyed and casual as well. But I don’t see a problem with the rest of them.
I actually like nice catch, as long as it’s not an egregious error. There are often going to be mistakes in a document, even when prepared by someone completely competent. This acknowledges someone as being part of a process instead of focusing on an error.