You are free to attempt to run a #Bitcoin affinity scam podcast by using the word Bitcoin while pumping zcash and other altcoins. Funnily enough, you could be sent a cease and desist letter if you changed your podcast name to Zcash Takeover.

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Zcash Foundation Enforces Trademark Against Small Domain, Sparking Community Debate

The Zcash Foundation has issued a cease and desist to Zcash Strategy, raising concerns about centralization in the community.