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.
While unlikely to have the airflow of a complete mesh fronted case, this is the one that caught my eye when looking for a budget case... and gets high praise in reviews: Phanteks Eclipse P300
I didn't have a lot of luck finding in depth reviews of this one (at least not the X variant) but the side intake and the optical drive bay interested me: Cougar MX330-X