[replying to your later reply]
Haha, I didn't even know you were a curator
This is a decentralized p2p system. Everyone is a curator. It is weighted by the amount of SP you have. I have a lot so my vote counts more, but everyone counts, even a brand new user with minimum SP.
It may be a bit mind-bending when you first start to think about it, but the nature of the system is very different from something like Facebook where people and algorithms work in secret to decide what gets shown and how. Here everything is determined by the users and everything is public.
I thought that all changed with the hardfork? I was here for about a week before then and I watched my SP go up from curation, and this was when I had much less of everything. Now it only moves when I make something from a post. Also I've seen Curator listed on people's descriptions so I thought there were people specific to the task. Thanks for explaining.
The only thing that would make showing my comment over and over more awesome would be if I wrote LOL instead of haha...I tend to laugh inappropriately when I'm uncomfortable or tired and apparently I type laugh for these reasons as well, sweet! Jeeze. I know I must sound clueless, this type of thing is not my strong suit.