User who sends the automatic Welcome Message has overflowing PM box

[codinghorror (Jeff Atwood)]

We are consolidating this discussion here

Are you using a real user to send welcome messages?

I started off our new Discourse forum with me as the designated sender of the Welcome Message. I figured this would be a nice way to give the message a human touch, and I did indeed have a few pleasant exchanges, just like I had here here on Meta when I got my welcome message from @codinghorror Problem is, I now have hundreds out outgoing messages crowding up my Messages. When I went there to find an exchange I needed to reference it was really difficult because all of the messages are titled t…