Albanians and Kosovars share more IBD with South Slavs than with Greeks. Greeks and Macedonians, on the other hand, share more with Albanians than they do with Slavs. What it means is both that Albanians affected these populations more than Slavs did and that they affected, and/or were affected less by, Slavic populations.
From the same study,
http://journals.plos.org/plosbiology...o.1001555.g003
now shut the fuck up and stop embarrassing yourself.