Abuse of Beer?

Ok, I don't really see what the big deal about this but my cousin insists it's an "abuse of beer." A crime equivalent to putting ice cubes in wine so I suppose I better write about it...

So we were at Pizza e Birra:

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And they have flavoured beer. Like lychee, cinnamon and apple flavoured beer. Obviously we got excited and had to try it..only to discover it was beer with lychee/cinnamon/apple syrup. So yes. I get it. Putting syrup in beer is bad.