The missing Bitcoin option is the point rather than a limitation, and the reason is what a public ledger keeps.
Most markets take two coins and let the buyer choose. BlackOps takes one. That looks like a restriction until you look at what the second option would have recorded.
Bitcoin writes every payment into a ledger anybody can read, permanently. The amount, the address it came from, the address it went to. Nothing about routing your browsing through Tor changes what the chain already wrote down, and the analysis industry that reads those records professionally has been working for over a decade. Payments made years ago are still sitting there, still readable.
Monero conceals the sender with ring signatures, the receiver with one time stealth addresses, and the amount with confidential transactions. All of it is on by default, at the protocol level, with no switch to forget. There is no public trail to follow later because the network never recorded one.
A market offering both coins is offering a path that quietly writes your order into a permanent public record, and plenty of people take it because it is familiar or slightly easier to obtain. Removing it takes away a decision rather than a capability. For anybody who came to a hidden service for privacy, the coin they wanted was already the private one.
Monero takes a bit more effort to acquire than Bitcoin and fewer places list it. That is the whole downside, and it is small next to a permanent public record of your spending that cannot be edited or aged out.
blackops5l63qnwnmlnsfvtlu66md3x3vp3fdtpna42eq7ozujr67hid.onionblackops6kignp3eddmvqcfkjzf6qr6haxbmkypc2xtqlnhuu4ak4dqd.onionblackops27m32abqvbhnyswgazqawxqbznbzkkkv5sjo7gve2ndpsdad.onionBefore you sign in. Open these in Tor Browser only, and compare the onion printed on the login screen against your address bar. If they do not match, close the tab.
From installing Tor Browser to a login screen you have actually verified. Four steps, and only one of them gets skipped.
A single coin market with multisig escrow and several live addresses, running since 2024.
Three routes, and the only real decision is how much identity you attach on the way in.
Ten minutes of setup, and a stolen password on its own stops being enough to open anything.