Hello all, I want to bring to your attention that LXDE is also affect by this. I am also getting this disruptive and rude "warnings" every time that I start my (fully updated, stable version) Debian Jessie LXDE computers.
It seems that the author does not understand (or doesn't care) that if you use stable versions of Debian (and other distributions), it is because you are willing to trade off "cutting edge" for stability. There are many, many scenarios where the stable version is much preferred over the "latest"; as a matter of fact, I almost always use and recommend stable versions. I work with people who are quite "beginners" at using computers; many are beginners at the level of not knowing to send email or even double-clicking a .desktop file to launch an application - warnings like those implemented on xscreensaver are bound to "scare" and "confuse" users of various levels of knowledge, specially beginners. In addition to that (as others commented), such warnings certainly make the OS less usable, and also cast a bad light on the EXCELLENT Debian stable. This should be against policy, can you imagine if all Debian packages start showing this kind of "warnings"? The stable versions would be a mess. I pledge to you to change the current (and future) xscreensaver versions on Debian stable to make this "warnings" go away, as soon as possible. Respectfully, Jamil Said