Is it possible your SD cards are fake? I did full disk writes till destruction and got 1000 cycles with a Sandisk Ultra (their cheapest line of microSD cards)

Is it possible your SD cards are fake? I did full disk writes till destruction and got 1000 cycles with a Sandisk Ultra (their cheapest line of microSD cards) That should be enough for 10 years under a typical Pi workload like writing and compacting logs.