Sure, their rank skyrocketed due to their huge campaign. But since the campaign stopped, expect their growth to slow down and stagnate. Their growth was pretty much mostly direct clicks from Bitcointalk, and now they don't have that, it's going to be tougher; in contrast to Bitcointalk whereas this forum has quite good SEO, with a good number of bitcoin and crypto related search queries that ranks high on Google.
Most of their traffic comes from Russia and according to Google trends with "cryptotalk" term it seems only Russia use this term and it's going to be trending in this country.
According to similarweb their website traffic increase too fast in 3 months so our forum is one of the big influence to rank cryptotalk too fast in Google rankings but it is showing some sign of big traffic drop from Ukraine.
I tried to analyze the whole cryptotalk backlinks but it shows almost 219,067 backlinks result and most of the backlinks are from Russia.
They also have bad spam scores from moz which is I think will lead to massive backlinks drop in a few months or Google will remove their website from the index.
Overall all their SEO strategies are by spamming that I think may also push their rankings down after the penguin update.