Yeah I've seen OMGSR hoards and popular list pet hoards. Honestly I have no idea why people think hoarders are greedy. I don't care if you hoard UR Tiger Dogs, it is NOT greedy. What difference does it make if you have huge folder full of list pets or a huge folder of list pets that happen to be the same? I have no idea why Chickensmoothie praises collectors to the high heavens and labels hoarders as greedy.
Hoarders or collectors both get their pets through trading. Trading means both parties are happy. Let's say someone has 20 UR Tiger Dogs: All 'anti-hoarders' see are 19 people kept from ever obtaining an UR Tiger Dog. All I see are 19 happy trade partners who finally got the Sun Jewel or quantity trade down or whatever it is they really wanted BECAUSE the hoarder is going for multiples of the same pet instead of keeping all those pets to themselves for a collection.
In short: Chickensmoothie is a game, the goal is to collect pets. I don't give a darn in what way people want to collect them, it's up to each user to decide for themselves.