Its the perception of SF that mattered mostly to him.
To Dave the Squad persona was addicting. In the beginning no one knew what he looked like so a lot of people believed that he was a bad ass lifter etc but once the photos started making rounds that persona took a beating. Notice that his height/lifting claims dropped dramatically. So did his gym owning posts.
This latest episode was just another blow to the persona that he had created.
Its pretty hard to make trailer trash jokes (pretty ironic) when you're one of them. EPic living in denial. The mantle of invincibility he thought existed around him was shattered pretty dramatically. I'm sure he was bragging about his getbig ownings to his fiancee. Imagine her shock when she found out her name and her parents was being discussed on a public forum.
Who knows..maybe her dad is hunting Squaddy in the tall grass with a shotgun

BTW how did his real name (Dave) emerge onto getbig? Did someone find that out or did he reveal it?