I was lucky. Got my legendary at 856 or something.

what about me? I got my legendary rank at 784

.
That is indeed lucky. I am almost at 900 mark and still waiting. Hope, I will get lucky at the next update.
uki
https://bitcointalk.org/index.php?action=profile;u=295254Name: uki
Posts: 4065
Activity: 896
Position: Hero Member
Date Registered: 19 March 2014, 06:10:46
Last Active: Today at 07:19:39
If I'm right with my theory, you should become Legendary before me as you joined months after I did, have posted nearly twice as often as I have done and you are at the same Activity level ( 896 ) that I am at.
Good Luck and
see you on the flip side.
And so i guess the number of posts counts very much for the random to be a HERO later on. Due to joining a signature campaign i now have about 2K. Maybe before i get to have 4k i may be a Legendary too. is it possible to have just about 600 in activity to be one?
no, you are guaranteed to become Legendary somewhere between 775 and 1030 activity, not early,
more post than the required minimums, does not an advantage to get the higher rank.