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.
Should be fine there to be honest mate, some may advise get a more powerful psu but you should be fine so long as you have all the correct pci-e connectors.
I ran one on a ea650 for the longest time before I upgraded so you should be fine. What I want to know is if I can run it with a 4870 in tri-fire on a ea650.