I believe that what is spent on the signature campaign is not as big as the profit they get and maybe the decision to continue the signature campaign here is no longer to increase exposure to their gambling site but another reason that is definitely still profitable for Roobet because a business will have a calculation that the money spent on promotion must be balanced with the profits earned.
And we see that gambling sites that run signature campaigns for a very long period get great success, so this forum is one place that many casinos might consider promoting their casino in future.
True so. They can spend initial budget to run a signature campaign with fixed time to run it with given budget. However, after that if they want to continue it, they should receive good signals and effects from the campaign to decide spending more budget for it but if the campaign runs a very long time, it must have another source, like part of income from new users who join and bet on Roobet by referring from their signature campaign.
With this sustainable model, it makes sense to run a campaign very long time without damage to the company marketing budget.