Huge Depends.
Some of my friends are indeed random internet people, that I never interacted much with here, but we all needed friends when we started, so there they were. I can get rid of those pretty easy.
Others are good friends I made here, and I know they are not playing, but I’m not yet ready to let their place go.
I have one, my best friend, she passed away 7 years ago, and I will Never remove that town. Ever. I even have to keep the original version of my town open(long story), just so I can visit hers. :'(
So it really depends in my land if you stay once I realize you aren’t playing
