Under our member names in all our posts, there is a line of horses that are colored black, blue or green.
What do they mean? As a newbie, I noticed mine were all black, but now one of them turned blue. Is this based on amount of time logged in? Winnings?
If you mean on the forum, the only horse list is ones that people use in their signatures to list their favorite horses, stallions at stud, champions, etc.
I think he’s talking about the little horse icons that show up on the left under our names. I think that changes based on the number of posts you make to the forum. So if you’re not very active on the forum you’ll only have like one horse lit up…if you’re very talkative, you’ll get a lot more. 
If someone has green horses then they’ve made a LOT of posts.
The title above the horses also changes. I think you start out as ‘racegoer’ and then you get different ‘ranks’ the more you post.
Ah… that makes sense. Thanks!
Ah, yes, those are based on number of posts. They start out all grey, then fill up with blue, then fill up with green.
Just out of curiousity, do the little horses change to a different color after they’re all green? 
No, because you need something like 50,000 posts for them to be all green, and so far no one even has 5,000 posts.