<p>Ten years ago, it was a custom that every site got its own name (i.e. Stack Overflow, Super User, Server Fault), not just <em>[topic]</em> Stack Exchange. There was a <a href="https://stats.meta.stackexchange.com/q/412/79696">community poll</a> (sadly, the results are no longer visible) and Cross Validated was the winner.</p>
