Maybe they stop the campaign for a while because the past promotions are over and they are now cooking a new one and once it finalizes, that's going to be the time they will do another signature campaign again, only to make the promotion more worthy. It is like killing two birds with one stone. In the meantime, this announcement thread right here can serve as their main source of promotion.
They stop maybe this is not effective to them or they achieve what they want for that campaign, but the good thing here is they have different methods tried since provably this could help BFG to get good volumes or even pump up. But to add more consistency of their token they should think other more utility of their token since this is more important rather than having a short term marketing campaign.
I think the previous signature campaigns were effective in any case since the manager mentioned earlier that Betfury plans to come back and launch another signature campaign on this forum in the future. By the way, according to the Betfury roadmap, there will be at least 2 significant events in the 4th quarter, namely the Betfury's Birthday and New Year parties. So it would be quite expected if Betfury launches a short-term signature campaign dedicated to one of these events.