This would probably be directed at the mods who build the site and do info, but I think you can make how many characters you want. I highly doubt anybody is ever going to make infinity because their not going to be on forever, and they will soon stop going on Animation Source all together when they get older (I mean really old, even though you can be a Lion King fan, Balto fan, Spirit fan, etc forever, they can just stop going on the site) So yeah, if nobody knows, or if this question is really important, I would suggest PMing one of the site builders.