I think, it was a bad idea to add advertising platform to the site. This will scare users away. They need specific functionality and quick acquisition of data, about their crypto-portfolios. The advertisement will just distract them.
At first, advertising will be thematical, that is somehow related to the cryptocurrencies, that are of interest to FinTab users. Secondly, each user will be able to disable it, if it really annoys him.