I just don't get how this song is trash, or at least how it's more trash than the Greek entry in, say, 2012.
Ska is a respectable genre, whether you like it or not, and if you don't fine. However, the amount of outright hate I've noticed towards this is plain odd. I'm overjoyed by the fact Greece finally sends something else than that generic pop song (though I admit 2011 was a nice breeze), but even if you are a huge fan of Greek pop, certainly the fact that a country for once sends something else than that doesn't warrant lots of hate.
I do realize why some may not like it, but personally, I consider this the best Greek entry in the 21st century by a fair margin.