Here’s an alternative that just adds a CSS class, lessening the impact:
http://hacks.atrus.org/greasemonkey/nosnap.user.js

Thanks for mentioning the Snap issue.
I recently removed it from my blog, partly due to your previous post on the subject.
I found that it increased page loading time enormously and could easily be prevented.
I figured that if I link to a WikiPedia page, let people interested click that link (or middle-click to open a new window), instead of bringing that little window up in their faces and little balloons around every link.
Thanks.