“A Collectible Avatar is a limited-edition, blockchain-backed avatar. Reddit first release was designed by Reddit creators, and available for sale via the Avatar Builder. This latest release is completely free, and being handed out to the Reddit top community members.”
But I have seen people with less than 500 get a free one.
Anyone who haven’t got free Reddit avatar try using the above link and check if you are able to get it.
p.s: I’m not linking the source to avoid brigading.