If I have symlink to directory, and I enter into this directory through
symlink, and use "Up" button, then I'm not back in the symlink's parent
directory but in parent of real directory.
The "Location" shows the real directory, not the
symlinked one. This also makes confusion. As in my example:
you are in "/home/ala" and go to "sample". After that nautilus shows in
"Location": /home/olaf/test, but the user expects /home/ala/sample.

Below is example:

Directory:
/home/olaf/test

symlink:
/home/ala/sample -> /home/olaf/test

I start in /home
I go to "ala"
I am in /home/ala
I go to sample
And nautilus shows that I am: /home/olaf/test
If I push "Up" button I go to /home/olaf.

I want nautilus to show /home/ala/sample 
and if push "Up" to go to /home/ala

Users get crazy when they see
/mnt/sda5/vol7/... and they expected to be in /home/projects/.....