I tested the 32GB sick stick with h2testw.exe as follows...

Warning: Only 30983 of 30984 MByte tested.
The media is likely to be defective.
13.8 GByte OK (28997632 sectors)
16.4 GByte DATA LOST (34455552 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
16.4 GByte corrupted (34455552 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x0000000364f16000
Expected: 0x0000000364f16000
Found: 0x0000000000000000
H2testw version 1.3
Writing speed: 2.16 MByte/s
Reading speed: 8.05 MByte/s
H2testw v1.4

Oh well, it convinced the seller to give me a refund although they probably don't understand much about it themselves.

They all seem to sell like hotcakes so I geuss most people are not aware of the problem or don't really care.

They just accept the short end of the stick, so to speak.