Man, can we just give this a rest? My gawd, I can't believe people have the energy for this. Just go back to an earlier distro before all this stuff and enjoy.
we can't. the reason is simple: security updates and software updates will be incompatible. i actually maintain a hell-on-earth system for a client. the choice to do so is entirely mine, i have to point out. it's hell because i disagreed with putting KDE 4 in front of clients who are used to the simplicity of KDE 3.5, and i disagreed with moving them over to Gnome because, well Gnome is a different kind of hell (for me), involving being completely unable to remotely ssh in and hand-edit config files in a pinch. with KDE 3.5 it is still possible to do that.
so i ended up upgrading to Trinity Desktop, but this is after leaving the system running debian 6 for as long as possible. the upgrade was... fraught. then i had (in December 2014 - so only a couple of months ago) to buy and install a new printer (because we couldn't get the old one). that new HP printer wasn't recognised by the version of hplip that was on the system (3.12).
so i did an "apt-get upgrade hplip" - and what do you think happened? it said "to satisfy your request we require to remove Trinity Desktop and install KDE 4".
the reason was because the Trinity Desktop Team do *not have the manpower* to keep such a large old software base completely up-to-date with debian/testing. ... so i was forced to compile hplip from scratch, from source code! *fortunately* HP saw fit to include an extremely well-written and well-thought-out script that detected the OS, installed the build dependencies and generally got on with the job. i was really impressed.
now, the only reason i could contemplate this was because i am an experienced GNU/Linux systems administrator, but do you *really* think that the average person will be satisfied to "use older software" as you suggest?
this is the crux of the situation: that we *are* forced to such extreme polarising choices. and that's why i did what i've done - demonstrate that it's possible to remove libsystemd0 which is being shoved down our throats. i *don't care* if libsystemd0 is good or not: i object to it being forced onto people.