Well - I'm sure that in the vast number of millions of Kindle owners, the number of people who do it is probably infinitesimal. Just like DRM removal, it is common among here but in the vast scheme that is Amazon we are statistically irrelevant. Most people couldn't even tell you exactly what DRM is, much less remove it.
I've seen account hopping talked about on various boards often... here, the Amazon boards etc etc and I've never seen anybody say Amazon has told them to knock it off.
