Why some withdrawals are reviewed by a person
Manual review is slower than an automated payout, and it exists for reasons worth understanding. What it catches, and what it costs you.
An automated system can send a withdrawal in seconds. A person takes longer. The trade is deliberate, and it is about what each approach does when something goes wrong.
What automation cannot refuse
An automated payout path signs and sends whatever meets its rules. If an attacker gets into an account, or finds a bug in the balance logic, the system does exactly what it was built to do — quickly, and for everything available.
Most large custodial losses share this shape. The theft was not a break in the cryptography; it was the payout machinery working correctly on an instruction it should never have received.
What a person catches
A sudden withdrawal of an entire balance to a brand-new address, minutes after a sign-in from somewhere unusual, looks wrong to a human and passes every automated rule.
A balance that does not reconcile. A review is a second place the arithmetic has to agree, which is a meaningful check on a bug rather than an attacker.
It also caps the damage by rate. Whatever goes wrong, it cannot empty everything at machine speed, because there is no machine doing the sending.
What it costs you
Time. A withdrawal is not instant and cannot be, because it waits on a person. For a service holding other people's money, that is the right side of the trade to be on.
At BYCRYPTO the amount is held against your balance the moment you request it, so the figure you see is accurate while you wait rather than promising twice over.
Including the transaction ID or address exactly, and not re-submitting the same request, is the practical way to keep it moving.