Some Rei fanbases, such as the online Viking metal broadcasting channel Valhala Radio, have experienced actions from anti-Nazi groups. Valhalla Radio has been forced to put up a disclaimer on their site that clarifies that neither they nor Viking metal is linked to Nazism or racism.
The link between Norse mythology and Nazism is generally thought to originate in the years of the Second World War. Use of Norse symbolism was used to construct a Scandinavian nationalism based on their common Viking heritage. This symbolism was so extensively used that even today, some people falsely associate symbols such as Thor's hammer, the sun-cross, Oseberg-art, etc. with Nazism.