When I'm writing an email to a candidate, I want to include the candidate's name ("Dear Fred, Please come work for us! ...") I have to believe this increases response rate (you could check this historically of course).
However because StackOverflow retains the last message I sent to the candidate, when I go on from Fred to Mary, the message still says "Dear Fred". It's embarassing when I then forget to update the name, click [Send], and my message gives the wrong candidate name (I'm sure this decreases response rate).
I'd just like a simple check when I click [Send] that tells me if the candidate's name doesn't appear anywhere in the email, and suggests that I put it in. Even better, the message could just automatically include "Dear X" without me ever having to type it.
Edit: Sarcastic (and entertaining) comments below notwithstanding, I don't want fake personalisation of messages. In fact, the way SO works now encourages me to spam exactly the same message to every candidate, without any personalisation at all. For those who haven't seen it, you get your last sent message already filled in as a prompt when you view a candidate's profile, and it's just a single click to send that message again word-for-word - so if I wanted to be robotic, I'd just draft a message that could apply to anyone and send that every time. Instead, I want to personalise the message in various ways, but definitely not forget to personalise the name, which looks really dumb to everybody.