Originally Posted by
Scholarios Chiotis
Eupedia and other such sources make this claim ( I should remind you that your good friend, Davai, also claims something like this). Eupedia I guess has many South Slavs who like to associate I2 with Illyrians. Personally, I do not buy it.
Nordvedt, as far as I know, has disproven this idea and shows that it is very young indeed. ( coalescing in Baltic area after the Illyrians and Thracians settled in Southeast Europe). The diversity of the clade decreases from North as you go South in the Balkans. Founder effect caused it to have huge numbers in Balkans.