A user 'NEOatNHNG' just posted a question about the Careers: GitHub import stuck where he put a link to his Careers profile (it's fixed now) which was created by him using a 'custom URL' option given under the 'profile / privacy settings'. But the user did not know that he had to also make his profile 'Public' to be accessible which resulted into a 'broken link' and displayed the following error:
As per 'NEOatNHNG' comment: (Note user says 'published' but actually meant to say 'created')
I published the profile but was not aware that I also have to set it to public for it to be accessible. The original problem with the GitHub import still persists though.
I think it would be great if the current 'Page Not Found' message can be replaced with something that is more relevant e.g. 'Profile is Private' along with a short description and a possible link on how to make it 'Public' for the profile owner. This would certainly help.
I would also like to add ShadowWizard's comment:
simple enough to have a different view if viewing your own page or others view it. (i.e. only the user will see the "profile is set to private" message)