You know, I always seem to get pinged by Vic. I don't know why. He often asks me if I think he's super nice or super scary, and once he asked me the spaghetti vs. mac and cheese question. XD I wish Vic would ping me to move, though! One can only hope...
Fang and Merengue. They ping me for everything: furniture, deliveries, moving, etc. Even though it can get annoying sometimes, I still do it so I can get their pictures.
daisy pings me alllll the time. sometimes to ask random questions, though a lot of the times it seems she's trying to sell me things for ridiculous prices. but I love her so I say yes to everything.
When I used to play the game, I had Savannah ping me a lot because she was literally my favorite villager and I talked to her all the time, next to Julian.
Cheri once pinged me 3 times back to back after running around my town. Each time I passed her she pinged me; "OMG I'M SO HYPER WHAT DO I DO?" At this point Cheri, 3 bonks on the head is going to knock you out, not calm you down.
Savannah pings me every time I open the game. She lives next door and pings so fast I never even hear it. She's just standing there swaying expectantly Happy to see her every time!