https://www.reuters.com/article/us-cryptocurrency-musk/elon-musk-says-he-supports-top-dogecoin-holders-selling-most-of-their-coins-idUSKBN2AF00R >Billionaire Elon Musk said on Sunday that he supports major holders of the meme-based digital currency dogecoin selling most of their coins, adding that he felt too much concentration in dogecoin was the "real issue".