Why BlackOps runs several onion addresses, what stays the same when you switch, and the search that costs people their accounts.
BlackOps publishes several onion addresses and all of them open the same market. Same account, same balance, same open orders behind each one.
A hidden service absorbs floods. One address means an attack closes the market for everybody until it passes. Several means the attacker has to hold all of them at once, which is a much harder job, and a slow address becomes an inconvenience instead of an outage.
Nothing you care about. You are walking through a different door into the same building, so an order funded on one address is the same order on another. There is no migration and nothing to transfer.
Not the outage, the search that follows it. Somebody finds their usual address quiet, looks for a replacement, and takes whatever a result offers. That sequence causes almost every phishing loss around markets like this.
Operators rotate addresses to spread load and to make a sustained flood harder to maintain. A target that moves is more expensive to attack than one that does not. From the outside this looks like instability and is closer to the opposite, since a market with only one address has nothing to rotate and nowhere to send you when that address is hit.
It also means an address you saved a long time ago may be retired rather than fake. The safe habit is to check any stored address against a verified source before using it, rather than assuming either that it still works or that it has been stolen.
Fifty six characters is beyond what anybody reliably recalls, and partial recall is worse than none, because a nearly correct address is exactly what a lookalike is registered to catch. Save a verified source, use it every time, and the question of what the address is stops being something you have to answer under pressure.
The whole path from a clean Tor Browser to a confirmed delivery on BlackOps, in the order you actually do it, with the mistakes that catch people marked out.
How to buy Monero, hold it in a wallet you control and fund a BlackOps order so the deposit lands the first time without a shortfall or a missing payment.
The account setup that makes a stolen BlackOps password useless, and the storage habits that keep you from locking yourself out.