I'm just speaking generally here, there are certainly cases where someone would need to back up this much data, but for your home media library? If we're talking movies, 20 TB is roughly 20,000 movies (for sake of argument, I'm not considering music). At what point is this just digital hoarding? I used to keep a large collection of movies, mostly pirated, and eventually realized that:
a) I was spending more time and money managing the collection then I wanted to. b) That I rarely watched many of the items in my library. c) That I was placing myself in legal jeopardy by storing so many illegal copies. d) Anything I did want to re-watch I could get from Netflix, the public library, or download.
Music would be slightly different, as I could see where music is in some kind of constant rotation, but again, how much of it are you actively using? I'm just playing devil's advocate here, but I think this kind of collecting/hoarding is a byproduct of pre-internet scarcity.
I'm always amused when I see people, mostly web professionals, bitch about CraigsList.
The VC and bizdev types hate CL because "CL is just leaving money on the table. They need to understand how to make a profit."
Webdevs hate them because CL doesn't adopt whatever new design trend comes along, therefore CL "doesn't get UX", or webdevs hate them because of situations like this, where some webdev can't build his business off of someone else's platform.
This, compadres, is why you don't take your business public. CL has a staff of less then 20 people, they make plenty of bank while at the same time staying true to their own ethos, whether you agree or not. And the consumers seem to be coming back over and over. And yes, I have heard many people say that this is because CL has been around so long, that they are the 500 lb Gorilla that will never be moved. Uhh, are we on the same Internet? Tell that to Yahoo, MySpace, etc etc.
Here's a Wired article from 2009 that covers the exact topic of CL and site scraping. Maybe PadMapper should have read it first.
No, but it took huge balls at the time to say "we're not supporting this anymore. " Apple did the same thing with the 3.5" floppy disk and adopting the USB port on iMacs back in the day and got roundly mocked for it, until the PC makers started following suit a few years later. Whatever Jobs was, he was certainly a visionary. Apple was never afraid of break convention when they felt it was the right thing to do. What other companies can we say that about (seriously, what other PC manufacturers have down this? I'm genuinely curious.)
That being said, I hear nice things about Zimbra.
There is a strong sentiment in the US that a person doesn't necessarily have to understand an industry to work in it. Reporters frequently report on issues that they barely understand and so they end up missing important details and nuances. Executives frequently get high paying jobs in other industries because "business is business." And yet these same executives are destroying their industries (looking at you banking and automotive industries). As we speak, Carly Fiorina is running for Governor of California based on the idea that because she was the head of HP (a job she was forced to resign from), she's qualified to run a state. These skill sets are not always transferable, but the status quo will be maintained by this layer of executive management because if the rationale behind this logic ever truly got scrutinized, I think we'd all be more outraged at how little value we've been getting for our dollar.