> Well, they banned you because they want you to stop posting inappropriate pictures (as defined by their TOS).
No, they banned him because they can do what they damn well please, and their approach to content moderation starts with a hammer and escalates from there. It would've sufficed to delete the offending post and issue a warning, even ban him from the group where he misposted the nude. Completely severing access, for a week, from a primary means of social interaction, is vastly disproportionate - that's something you do because someone has demonstrated a clear pattern of deliberately shitty behavior, not because he got loaded and acted the fool one time.
Considering the extent to which Facebook has inveigled itself into so many people's social lives, and the consequent scope and impact its moderation actions may have, I think it's long past time that some severe regime of external regulation be imposed on the corporation, whether by legislation - although that's a forlorn hope at best in the US, where Congress is largely useless no matter who's in it at any given time - or by shareholder activism, as someone else here suggested. I'm not the man to run that project, but I'd surely buy a few shares to participate in it.
To be clear, I don't want Facebook fixed, because I don't think it can be. I want Facebook gone, engineered out of profitability - and thus out of existence - and replaced with a world in which no new Facebook can arise because everyone can both own her data and identity outright, and participate in what we now call "social networking" without having to make herself beholden to any corporate behemoth at all.
It's possible! There are a lot of smart, capable people working on it, and more join in every day. Eventually, someone's going to hammer that stake into Facebook's heart. Before then, finding a way to enforce nuance upon it is a good place to start. Facebook hurts people every day, and cares not at all that it does so. As we work toward the ultimate goal of killing it, we do well also to reduce its ability to do this sort of harm.