Mentioning taxes as the basic reason why Centralized exchanges sponsored teams in the sport tournament can be somewhat out of place if you don't give a clear explanation into why that be, I have seen a lot of the casinos like BC games and stake on alot of place in the last concluded football season, and I know that Aside from their community support to the team their are also generating traffics and even pay higher tax if the inflow becomes significantly noticed by the regulators, but then the sole aim for such sponsorship is not to gain tax but to gain more visibility and ground as a licensed enterprise.