Deletion of List of nationalities and cultures in Eastern Europe

Comment: A  thesized list of awkward duplicated content. Who defines Eastern Europe? Who can provide a citation of an academic  |reliable source that |has compiled such a list for us? Why doesn't any other list of the sort exist, like its mother (List of nationalities and cultures in Europe|List of nationalities and cultures in '''''Europe'''''), or like its sister (List of nationalities and cultures in Western Europe|List of nationalities and cultures in '''''Western Europe'''''), or like any of its cousins (e.g. List of nationalities and cultures in South America|List of nationalities and cultures in '''''South America
Stance: delete
Cited policy: Wikipedia:Neutral point of view (WP:POV||WP:SYN||WP:RS||WP:SYN)

Comment: Vary vague title and content. |Who will draw the line and define cultures of Eastern Europe in general? Just imagine the duplication of content when one culture may have multiple sub cultures/ groups. It is very 
Stance: delete
Cited policy: Wikipedia:Reliable sources (WP:RS||WP:POV)

Comment: Nominator seems to misunderstand what we use |lists for, with his argument that "It copies information from elsewhere".  We use them to do exactly that.  Also, he makes |IDONTLIKEIT and "It's incomplete", which aren't valid arguments for deletion.  After eliminating these, there's really nothing left to suggest deletion
Stance: keep
Cited policy: Wikipedia:Lists (WP:LIST||WP:IDONTLIKEIT)