>The act of observation changes the behavior of the observed. If experiments are not disclosed and clearly demarcated, users must defensively assume that they m

>The act of observation changes the behavior of the observed. If experiments are not disclosed and clearly demarcated, users must defensively assume that they may be observed/experimented upon, which affects behavior in the entire network. As a side-effect, this pollutes any conclusions which may be drawn from future "social" research. Sounds like the effect the Snowden revelations have had on some discourse or interactions online, now that people more clearly know that someone may be listening.