Didn't see a thread for it, so here we are. If there already is a thread, my apologies - please take action as you see fit.
In the PM sent by the automod, there is a misspelling which is probably the reason why the data injection isn't working.
Hello $[user.recipent], Welcome to MotherBound! You see $[user.recipent], here at MotherBound our staff are always readily available! Just ask Admin or Admin2 for assistance if you need anything. This is a forum for Mother fans of all ages! Goodbye $[user.recipent] and Fuzzy Pickles!
You're probably looking for $[user.recipient]instead of recipent.