I started out during Whacking Day, so I were in dire need of alot of friends. At that time I added alot of random people, and many randoms added me. I were in touch with some in regards of trading eggs, and others in the hope of getting some donations. And I must say, there is a lot of nice people here. Still there are many on my full friends list I have never spoken too, and some that didn't respond at all to my greetings. I even have a lot of "friends" with huge housefarms.
I even have some that I know are inactive, since they haven't leveled up in weeks.
Up until recently I visited everyone daily, but during vacation time, I haven't had the time (I'm more busy during vacation than otherwise ;) ). Now I only visit those I have been in touch with mostly daily, and the others only when I have the time and feel like it (that may be often enough once my vacation finishes).
If Krustyland don't require a lot of friends, I think I will finally start deleting quite a few, atleast the inactive ones. Funny enough I only have four friends from the forums on my friends list, but that kind of suits me, since I still am unable to decorate my town. I have just recently gotten all the free buildings, now I can finally concentrate on buying more land, and save up a little bit before the next update hits. My town isn't nice, it's quite ugly really, but I am trying to space my buildings a little bit atleast, but since so few people from the forums can see my town, I'm fine with that for now.
It's hard being a latecomer to this game, and trying to get even. So for those of you thinking some of us isn't trying, and therefore delete your friends after viewing their town once, keep in mind that when you are new to the game, it takes a lot of time to get to the point where you can concentrate on just decorating your town. I suppose most players prefer to get the buildings and characters as fast as possible first and foremost, then buying the land, and finally trying to beatify it... From scratch until you get to the point where you have enough cash to "waste" on decorations, it will take some months, maybe even half a year at this rate with updates, depending on how active you are...