I'll take a shot at that. Weblog community-links along which negative energy flows tend to break themselves. Rather then leaving two antagonists in a more conventional community, neither of whom will leave and neither of whom will back down, the link between the two will simply sever... possibly with a great deal of noise and smoke, but sever it will. *Shazam*, no more contact, yet the meta-community remains more-or-less intact, and is even better off for having less negative energy flowing through it. Weblog community-links along which positive energy flows will tend to reinforce themselves; we see this in the list of links to other weblogs which seem almost redundent because the 'blogger links to them so often anyhow. It's not redundency, it's a sign of the strength of the bond between the two community-units.