It's still too much...
But when you consider how much e-mail traffic itself has dropped, the spam drop is even more significant. I see more spam on FaceBook now then I do in e-mail.
What resource limitations do solar and wind have? Does the sun ever stop shining forever or does wind stop blowing forever (outside of the obvious death of the star)? In principal, sun could be close to free, once that is true, we can recycle our current trash pretty much for 'free' and if we did, there is plenty of plastic and oil to go around for the upcoming centuries.
Because solar collectors and wind collectors are made of "stuff" and we have a finite amount of "stuff" to make them with. And that energy, once collected, is stored in some vary rare and expensive "stuff" too.
Sure there is solar, and wind, but they run up against some rather hard resource limitations.
Planet-based renewables, other than breeder reactors, are pretty iffy. Space-based solar (SPS) is very reliable, and doesn't suffer downtime from weather conditions, just like breeders.
Of course all of those things take extensive materials that we do not have an unlimited supply of. And Space Based Solar, if widely adopted, would increase the imported heat to the planet faster then fossil fuels.
I was just noticing the other day that a number of emacs lisp packages I use on a regular basis hadn't had any development work in 5-10 years.
If it works, why change it? The SmallWall project was immune to all of the SSL bugs in the last year because we use an old version that does not have these new and buggy features... Of course, this rating system would ding us for that...
An attacker might e.g. get commit rights to several low-activity projects, insert malicious code, and wait for people to download updates and become easily exploitable.
Their rating system actually encourages this. If you have tight controls on commits, like perhaps 1 or two people who review code and actually make the commits, you are "at risk." So go ahead and give that NSA guy commit access...
What is algebra, exactly? Is it one of those three-cornered things? -- J.M. Barrie