BlackOps runs on Monero and nothing else. No Bitcoin line, no swap happening in the background, just XMR in and XMR out. For people who came to Tor for the privacy in the first place, that is the whole point. The wallet never leaks a history because the coin does not carry one, and the absence of a Bitcoin option removes the chance of making the convenient choice by accident.
What it costs is the convenience. Monero takes slightly more effort to acquire than Bitcoin and fewer exchanges list it, so if you already hold Bitcoin you will need a swap before you can order at all. Whether that trade is worth it depends entirely on whether you would be comfortable with the alternative sitting in a public ledger indefinitely.
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