Totally. In our case the main security benefit is that we allow the uploading of SWFs, and it mitigates the threat of cookie stealing via Flash (which we've act

Totally. In our case the main security benefit is that we allow the uploading of SWFs, and it mitigates the threat of cookie stealing via Flash (which we've actually seen attempted). Previously we'd used 4channel.org for this, but I switched that over along with the migration to 4cdn.org.