When Dave reads a blog that has a feature that annoys him — SnapPreviews, for example — he wants (as a user) a way to modify the content offered by the blog author to suit his tastes.
When someone else is bothered by a feature on his blog — that addresses he lists aren’t linked, for example — he gripes about any tool that lets users modify the content he authors to suit their tastes.
Hypocritical position #871: Dave wants more control over the content he reads than he thinks his readers should be allowed to have.