Discord keeps it on the down low:<p><a href="https://discordapp.com/api/experiments" rel="nofollow">https://discordapp.com/api/experiments</a> produces<p><pre><code> {"assignments": [[1927765909, 0, 0], [2969373038, 0, 1], [518926094, 1, 1], [3089664276, 0, 1], [3747495958, 1, 1], [600804427, 2, 1], [2078807847, 2, 1], [372914062, 0, 0], [4002407165, 0, 1], [2827351180, 2, 1], [183948708, 2, 1]], "fingerprint": "..."}
</code></pre>
If you prettify their main JS bundle, you can figure out what these map to.