If I whisper the most beautiful poem over the telephone to my lover today, am I going to complain about the phone company not archiving that call properly when I want to revisit it 20 years from now? You go into Twitter knowing it's about the ebb and flow of current conversation, not about what was said when it first came out. If Twitter wants to eventually offer that, that's cool, but that's not the case right now,…
While everything you said is correct, at the same time, there's no sense in losing access to data that's recorded and is sitting right there for the taking, if only there were a more convenient way to extract it. It would be very wise of Twitter to offer a bulk export function - not because they have to, but because it's to Twitter's benefit to not have me thinking twice about whether I should post to Twitter or comm…
Look at the 2.5 hour Facebook outage from a couple of days ago. If Facebook were to be hit by an airplane or asteroid, a seriously significant portion of 500,000,000 peoples' lives would be lost, if only just in photos. If my house were to have the same thing happen, 150 people would experience a somewhat lesser loss.
I have thousands of emails between close friends in Gmail that I would like to preserve, but no convenient system exists for archiving them away from Google. The point of archive is to have redundant systems on which to rely. Archiving my Gmail with Google is therefore not an archive since it's still only one system.
It's like leaving a tasty pork chop in the 'fridge at work and expecting the cleaning lady to not toss it over the weekend. I really think archive should be the responsibility of the user.