Some users have recently had their accounts hijacked. It seems that the now defunct EVGA forums might have compromised your password there and seems many are using the same PW here. We would suggest you UPDATE YOUR PASSWORD and TURN ON 2FA for your account here to further secure it. None of the compromised accounts had 2FA turned on.
Once you have enabled 2FA, your account will be updated soon to show a badge, letting other members know that you use 2FA to protect your account. This should be beneficial for everyone that uses FSFT.
Any recommendations on a reliable USB flash drive to be used for a Nas4Free server?
OS will be installed on the USB drive so I want something very reliable.
You don't really need anything fancy. That said, I splurged a little and got a Kingston Data Traveler Elite 16GB USB3 (even though I'm using it with USB 2.0 since I can't boot up over USB 3.0 on my mobo due to lack of USB 2.0 ports). 16GB is intentionally more GB than necessary and should ensure massive overprovisioning and no worries about wear and tear. I also got it for slightly better than average random 4K read/write speeds which helps slightly with boot-up time.
Anything by Sandisk or Lexar ought to be fine as well.