Imagine if all of the major cloud companies' code were suddenly AGPL and released; it does you virtually no good without massive amounts of infrastructure and data. The GPL and its ilk were conceived in a different era of computing. Most people couldn't even afford the ability to run Google's internal applications even if they were released with full source.
There is a distinction these days between software and services provided with that software; indeed there is a lot of value and functionality added in that layer that the GPL virus people would love to get their hands on.
Unfortunately the "infrastructure and configuration is required to make it work" value being locked up can't be solved with a license - so it can't actually deliver the usual upside of the GPL. At the same time, it _does_ deliver the downside in the disincentive to actually add that value (as then you can't use it as a competitive advantage).
Don't wave the AGPL around as a feature; it's shameful.