That's ominously sounding bullshit. You decide what to do with your willpower, and if you don't like the consequences, it's your fault, not some nefarious engineers. If you don't like facebook, don't go there. If you don't like particular site, don't go there, of if you absolutely can't control yourself, install one of a thousand programs that let you block specific sites, and block that site. It's completely within your control. It's your responsibility to do it, to control your own actions and to bear the consequences.
You just don't want to bother - you want the Central Committee to take over, so whatever happens if not your responsibility but theirs. It is an extremely infantile approach.
> Nice straw-man that conflates democratic socialism with authoritarian one-party rule.
OK, let it be People's Democratic Central Multi-Party Committee is that makes you feel better. The point is not how the committee is called, the point is that it would decide how resources are allocated, thus eliminating the whole pesky free will issue.
> Don't throw the socialist baby out with the Soviet bathwater.
Somehow socialist babies have been always surrounded by Soviet bathwaters, sooner or later. If one were empirically inclined, one would be tempted to conclude that there is some strong relation between the two. But of course one shouldn't forget that True Socialism (TM) has never been tried.