At least on that OS it can be installed in a straightforward way.

If one really wants to install skype on a 64 bits debian, they need to apply loads of tricks (and risk to bork their system in the process).

Last time I attempted that, the package installer prompted me to first uninstall X - the window system - (amongst a whole lot of other crucial software) as incompatible dependencies...

That seems to be a Debian packaging issue, since all you need to run skype are the 32-bit libs it uses. I run it on Arch with no problem.

Yes it is, the deb package (provided by microsoft) having been created for an older version of debian (6 or 7) but being the only available one for debian 8... dependencies don't match.

And I on 64 bit Ubuntu 14.04, aside from having to delete my .config/Skype a time or two.