In the past month (June), perl.org has blocked over 18GB of spam/viruses/bounces/other crap. May was slightly less at 16G. That either means our rules have gotten better, or we're getting more crap.
18GB is 12534 1.4M floppy disks. That's a stack about 3133 inches high. That's 261 feet. (Or 80 meters, for you metric folk.) That's almost the height of the statue of liberty, including base and pedestal.
18GB is 439 40MB hard drives. (The hard drive in my old 286 was 40MB.) If I remember correctly, the drive was around an inch high.... but this height thing is getting boring.
What would we have done if spam existed in the good old days?