If you open Settings in the Message App, you can deselect Group Message, you can still send messages to multiple recipients and it will not display the names or numbers that you sent it to.
Sent from my SPH-L720 using Tapatalk
XX ~ Stay thirsty my friends ~ XX
Galaxy S4 - Current
Galaxy S3 - R.I.P.
EVO 3D - Stand by
EVO 4g - Stand by
Hero - Retired
HTC Vogue - Retired