It smells fishy to me. Why would they pay postage to send out cards to our real address. Why not just give us all a patch or send something via email? I think those who send in the addresses are going to get a lot of junk mail soon. I hope that's all.
Promotion. Low-cost attempt to encourage folks to continue contributing. After all, in some very real sense those of us who write instructables and provide answers really are the "product" Instructables is selling; without the volunteer contributors, the site would be a fraction of its current size and popularity. And, yeah, I suspect they do want to authenticate the participant distribution. That's useful info when they're trying to sell advertising space on the site (and/or when trying to find folks to sponsor contests). But I'm not particularly interested in a postcard. Not unless there's something particularly interesting about the card that they haven't told us.
There's a microchip under the stamp containing a secret video message from Eric. Good luck figuring out how to read it, I happen to have a microchip-reader-video-player device already.
I think that instructables is looking for a way to tell where people are so that they can target-market effectively-that is, they can sell time/space to advertisers not that they are going to sell the list.
Bio:
╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗
║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣
╠╗║╚╝║║╠╗║╚╣║║║║║═╣
╚═╩══╩═╩═╩═╩╝╚╩═╩═╝
Or not
i just a regular kid i live in the windy city and there's nothing to do in my neighborhood so i just make in...read more »
PDF Downloads As a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.
If it's appealing more to other folks, that's great -- consider me an outlier.