Geometry Dash Community

The Geometry Dash Community is a community that uses many lenny faces as well. This is a trend that, in this case, uses the lenny face as sarcasm. They also use lenny variations to show other moods. In fact, the game itself has an icon featuring Lenny (example pictured below)

Origin
The lenny face came among the Geometry Dash community when there was a large MLG bang that overcame it. This brought many forced memes and trends, including the lenny face.