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.
Sounds pretty legit though. I've known a few people with dedicated servers through there who have in turn hosted me and I can imagine their domain system would be pretty straightforward.
Yeah, I always get a good signal with Sprint, currently it's -62 dBm at home. It all depends on your location, really. Some of the 'worst' providers are the 'best' in other areas.
Cheap contract, go for Sprint. Of course, check the coverage in your area first. Otherwise T-Mobile is also cheap.
If we're talking pre-paid, I can tell you from experience Straight Talk works fine. Although their customer service is almost non-existent so I suppose you get what you pay for...