How do i get rid of the group name next to posts http://prntscr.com/iqg4d4

You would edit the theme template under Customization > Themes.

Or use the Group Formatting setting on a group:

<span style='display:none'>Group name</span>

 

5 hours ago, Nathan Explosion said:

Or use the Group Formatting setting on a group:

<span style='display:none'>Group name</span>

 

I wouldn't recommend this - in some places we wrap the group formatting options around the username (e.g. in the online user list).