On one hand, one can say that without social sharing mechanisms, (iframes in this case) the discovery of many other sites would have been impended. On the other hand, if you are as big as washington post, you’d have more to protect. But if I’m a budding blogger hungry from exposure, I’d say please come and frame me.

Also, for people who want to share about other sites, it is a pain to link to another site and lose exposure of their own in the process.

For the overall good of the web, I’d say that iframe should be good as a social sharing tool. Albeit I also think that there should be some good practice guidelines. Perhaps showing ads on the referring iframe should not be encouraged. But if its for maintaining the original presence, it should be good. Do it like Google or themeforest.net where an option to close the iframe is provided. I believe this is fair. On many occasions, I do close the iframe because the content was good for more discovery.

If content is good, the rest are lesser issues really. This is the web! Let it be.