Characters
Some people prefer a more communal experience when sitting alone at a keyboard exchanging lies with a complete stranger. We provide that to them.
— Mike

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The speaker offers a shared setting for people who are individually alone at keyboards. Describing their messages as lies gives this promise of company a cynical edge. The humor comes from selling connection while speaking so bluntly about its limits.
Context reviewed