Oh dam this will take me a looong ass time to reach it, only at 588 activity as of this post. Been here since 2011 too.
There needs to be a rank in between Hero and Legendary
We are on the same track There needs to be a rank in between Hero and Legendary
As theymos said here:
To make things more fun, the Legendary membergroup has no universal activity requirement. You are guaranteed to become Legendary somewhere between 775 and 1030 activity, but the exact point in this range at which you become Legendary is random per user.
It's not a fixed 920 activity, it might be quite easy to reach for some, harder to reach for others.