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.
Shoutcast will let you stream music from your media player (not sure what it works with these days, used to be Winamp) or a mic. Streaming the live audio of whatever your soundcard is doing is a bit more difficult, at least on Windows. I don't know of a good way to do that other than looping the output back to the input.