Please, could someone add more information about it?. I find it very interesting since I have an old pentium III laptop with lubuntu 12.04 installed, I have tried lubuntu 12.10 installation and it doesn't work in such an old dinosaur.
lubuntu shares almost all of Ubuntu's repositories except for a few things. I think if you have lubuntu 12.04 and add this ppa it would become a LTS https://launchpad.net/~lxle/+archive/updates
Out of the box I find lubuntu a lot cleaner. Lxle comes with too many junks IMO and have too many ppas enabled. I have no problem with ppas, I use quite a few but I add them myself. I think it is problematic to install a lot of ppas without the user's knowledge because conflicts may arise later and the user wouldn't know what happened. Just my two cents.
If installing the forementioned ppa changes my unsupported now lubuntu 12.04 in a LTS till 2017 I will do.