I just spent a few hours figuring out that t() was stripping out the realname of my user's, so apostrophes were getting plaintext-ed and it took me a while to trace all of the functions down to t(). Anyways, I want to recommend giving the ability to the admin to switch some or all replacement strings to !string instead of @string because t() strips it down...causing the email notifications to display the user's name value incorrectly.

This can hopefully save some other developer a few hours of debugging. If I get some time in the next few months, I'll see if I can commit this fix, but don't count on it :-). On another note, thanks to you community developers for making this superb module.