KDE Mac ports binaries are installing ALL the files included in KDE after compilation.

A lot of them are absolutely unnecessary to get KDE running, so it waste more than 1 Gb for nothing on the hard drive.
For example, QT 4 has all the files even those necessary only to develop applications or to compil them, while a end user will only need the binary to run the softwares !

I think it will be time to clean-up seriously your packages for the next update.

OK hard drive are more and more big, but it is not a reason to waste the space uselessly.