Let's use our brain, shall we?
>You've registered in September 2014.
>We're now in December 2017.
>That's a difference of 3 years and 3 months.
>That's 365*3+30*3 = 1095+90 = 1185 activity.
Of course, that's not the exact potential activity of your account, as I rounded it off to whole months and activity is only counted per 14-day period, but it's accurate enough to say that your potential rank is Legendary.
Anyways, can you please try thinking a bit next time? It's not that hard.
That's completely wrong. You don't get 14 activity every 14 days just by having your account and doing nothing. You must make at least one post every 14-day period to "increase your potential activity by 14"; After a check in OP's post history, looks like he had at least one period of over 2 years where he haven't made any post. This means that he can't have that many potential activity.
The BitcoinTalk Price Estimator tool showed your potential activity. But the website is now down for an indefinite period of time. So, you probably must calculate everything manually by checking your post history.
