There has been a lot of unrest due to people using Snap Preview Anywhere on their websites. Personally I kind of like the idea of it, but I have yet to find a way to limit the pop ups to only appearing on comments, where I think that the preview Snap provides has value. Most people find them annoying as well as distracting.
Again, I think that the Snap previews are pretty nifty but really only serve a purpose on comments to preview a commenter’s website or a trackback link. Maybe if there was a way to limit the previews only to that aspect of a post, people would not find them so annoying.