> But adding this repo and installing dolphin from there is not necessary any
> more anyway.
> Dolphin 15.04.1 and kdelibs 4.14.9 are available as official update for
> openSUSE 13.2.
 
> Wow, a lot of garbage has accumulated in there.
> Just delete the whole folder /home/heart/.kde4/share/apps/kfileplaces/, the
> "places" are not stored there any more to fix this bug (and others).
> 
> Strange that it is still growing though. It shouldn't be used at all any
> more.
> Is your system fully up to date?
> All kdelibs* and libkde* packages in particular?
Yes, it's fully up to date.

# zypper se -si kdelibs libkde dolphin
S | Name                       | Typ       | Version        | Arch   | Repository              
--+----------------------------+-----------+----------------+--------+-------------------------
i | Dolphin                    | Anwendung |                | noarch | (Systempakete)          
i | dolphin                    | Paket     | 15.04.2-3.8    | x86_64 | KDE:Applications        
i | kdelibs3-default-style     | Paket     | 3.5.10-83.1.10 | x86_64 | openSUSE 13.2 OSS       
i | kdelibs4                   | Paket     | 4.14.9-24.2    | x86_64 | openSUSE 13.2 OSS Update
i | kdelibs4-branding-openSUSE | Paket     | 13.2-3.6.1     | noarch | openSUSE 13.2 OSS       
i | kdelibs4-core              | Paket     | 4.14.9-24.2    | x86_64 | openSUSE 13.2 OSS Update
i | libKF5KDELibs4Support5     | Paket     | 5.10.0-21.19   | x86_64 | openSUSE 13.2 OSS Update
i | libkde4                    | Paket     | 4.14.9-24.2    | x86_64 | openSUSE 13.2 OSS Update
i | libkdecore4                | Paket     | 4.14.9-24.2    | x86_64 | openSUSE 13.2 OSS Update
i | libkdegames                | Paket     | 15.04.2-3.6    | x86_64 | KDE:Applications        
i | libkdegames4               | Paket     | 14.12.3-9.5    | x86_64 | KDE:Applications        
i | libkdegames6               | Paket     | 14.12.3-9.5    | x86_64 | KDE:Applications        
i | libkdepim4                 | Paket     | 4.14.9-24.2    | x86_64 | openSUSE 13.2 OSS Update
i | libkdepimlibs4             | Paket     | 4.14.9-24.1    | x86_64 | openSUSE 13.2 OSS Update

> If you still have problems with the latest versions, you might try to delete
> that one as well and start fresh. Maybe it's gotten corrupted somehow by the
> earlier problems...

What I tried now is totally removed ~/.kde4/share/apps/kfileplaces/ and removed also ~/.local/share/user-places* files.
BUT after logout and back in there was now functional plasma-desktop there!?! No kicker, no taskbar/systemtray icons, no plasma widgets, no desktop background picture...
Also 'killall plasma-desktop && plasma-desktop &' didn't bring back a working desktop in this stage :(

I added then a new user in a console and logged me in with this new user and voila, there I have a perfectly working kde/dolphin (incl. places entries working here).
So I copied the working ~/.local/share/user-places.xbel file from this new user to my old user (chowned to old user, home folder name to old user) and logged in again with the old user. Now I had a working desktop again!

The situation now is... I CAN add a new place in dolphin (this new entry still gets deleted automatically after 1 sec) BUT after this addition of a new places entry plasma-desktop crashes again :(! 

(but 'killall plasma-desktop && plasma-desktop &' and starting dolphin again now shows this newly added places entry <- this is new behavior)

I uploaded again a video showing my total desktop when doing above mentioned new places entry so you can see the plasma-desktop crash too.
youtube link to that video -> http://youtu.be/IGbEOMQTn6A (rendering could take a few nire minutes/hours from now)

Really strange :(