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.
I would get 3x4GB. There is no guarantee that your new set will work well with your old set or with all 6 slots occupied. That way, you'll get at least 12GB to use if things doesn't work out and you won't get stuck with 2 sets of 3x2GB and you can only use one set or the other.
I tried this with gaming 7 with G.skill ram, no problem at all. It seems people with problem all have Corsair Vengeance LPX ram, those with G.skill ram are mostly problem free. I think those who want to go with Gigabyte 170 boards should pick G.skill ram for painless experience.
On Gigabyte website, the Gaming 7 is being advertised as Intel Thunderbolt 3 certified motherboard, and there is a thunderbolt driver available in the driver section. If it doesn't have Alpine Ridge, what Intel controller is it using for Thunderbolt?
World Champion <> World record. You can win multiple world championship without breaking the world records as Usian Bolt did.:) No need to argue about it here.