Then the future of the web is quite bleak. I don't think there's a standard accepted form for the card, unless everyone decides to copy Twitter et al. I'm stil

Then the future of the web is quite bleak. I don't think there's a standard accepted form for the card, unless everyone decides to copy Twitter et al. I'm still browsing a fair number of sites that fall outside of social media and "sharing sites". Twitter for me is mostly for news and some social interaction where I see cards being used effectively, Pinterest is nice to look at from time to time, but I'm not stuck there either. Now more and more people are confusing Twitter, Facebook, Pinterest and family with "The Web", but a fair amount of content still resides on independent sites. That leaves a vast majority of independent sites that may or may not modify their markup to be "card-friendly". Also, Twitter makes their card-friendly markup explicit and I'm not sure that's gonna fly for the long term. If everyone is willing to standardize on Schema.org markup OTOH, then I'd say it's acceptable.