"It is still not good that "about panotour" CANNOT be removed in a PROFESSIONAL VERSION! So why do I buy it then?"
If you want 100% personal branding of the player, then you should buy a krpano-branding free version from krpano.
I think you may have misunderstood the complaint. Even if you do have a krpano branding-free licence, unlike Autopano Tour, there is no way to register it with Panotour or Panotour Pro to remove the link to krpano from the context menu.
So the request is for there to be away to register a krpano branding-free licence with Panotour/Panotour Pro.
Also Autopano Tour does not create a link to Kolor in the context menu, but Panotour/Panotour Pro does ('About Panotour'). It can be removed but only by editing the XML, which of course is not available to users of Panotour (as opposed to Panotour Pro). OTOH Panotour/Panotour Pro has a feature whereby you can add additional links to the context menu via the GUI. I think it would be reasonable for the 'About Panotour' link to be removable from the context menu via the GUI.
If you want 100% control on features you should read and lern the krpano documentation. To me it seems like you are criticizing a beta version of a software, and please keep in mind that the beta is not the final product, and that its helpful with constructive critique that helps developers nail the bugs and improve features.
Alexandre has said that Kolor has no plans to enable the registration of the krpano branding-free licence in Panotour/Panotour Pro until after
the final release of Panotoyr/Panotour Pro V1.5.
And that's why some people who already have krpano branding-free licences, and use them with Autopano Tour, are unhappy.