I think I was able to pick up around 100 lurve per day up until I hit 5000. Then, boom! Things became much slower. Of course, it wasn’t that people were lurving me any less; it’s that their lurve didn’t add to the lurve total, since they had already lurved me to the maximum. To get lurve after people have maxed out, you have to appeal to new people.
But the first 5K is really easy. It’s what you do after that that shows your mettle. With each 10K mark, it becomes harder and harder and takes longer and longer. You have to be really dedicated… or really crazy and obsessed to keep on going after that. Not that I would know anything about that. ;-)