Think about it guys
1] If you don't want random online Miis you can turn off that option in the Streetpass Plaza options.
2] If indeed all the online Miis would've given you a piece of puzzle you'd complete everything in half a day
3] Streetpass Miis are different from regular Miis (
hatssssssssssss)
I have 50 SP hits and... about 200 Miis in the plaza, I think.
It's good that, if you save a regular (online) Mii it gets the fuck away from your plaza.
or you can simply delete it, like i did with one.
With SP Miis even if you save them they don't get deleted. and it's such a rare thing that you don't want to!