<human>: Last week, I spent half a day souring the internet to get mailing addresses for my side of the guest list.  I got all my friends and all my family except for my aunt who just moved.

So then I told my fiance to start getting mailing addresses for his part of the guest list.

He set up our wedding as an event on Facebook, put a note on it to PM one of us your home address, and invited everyone on his list who uses Facebook.

Is it just me, or is that really tacky? (Although you have to bear in mind that he is a software engineer.)  I'm kinda embarrassed to invite any of my people to the event through Facebook, so I haven't, but alternately, it looks weird that I don't have anyone on it.

Could you distill the essence of the text into 1-3 sentences?
<bot>: Fiance invited people to our wedding through Facebook to ask for their mailing addresses for real invites. Is that tacky?