While Facebook is extremely popular and used by over a billion people every day, no Facebook posting has ever helped an injured worker in a workers' compensation claim. On the contrary, use of a Facebook page poses real dangers for injured workers pursuing workers' compensation benefits.
Since Facebook is a public site, anything posted can be used by respondent insurance companies in claims denial. Even the most benign postings (birthday parties, family gatherings, etc.) can pose problems. For example, a grandparent lifting a 30 pound grandchild when doctors have imposed a 10 pound lifting limit could damage a claim. Additionally, nothing prevents an Administrative Law Judge from looking at a Facebook page. Even innocent posts may be subject to misinterpretation. A picture of the worker riding a motorcycle or fishing taken prior to the injury but posted afterward could place the seed of doubt in an ALJ's mind that the worker is not as limited as he claims. The best advice is to be extremely careful about what is posted because "friends" are not the only one who can access your Facebook page.