The ASA wants crypto firms to make it clear that past crypto rallies do not guarantee the same scenarios in future.The Advertising Standards Authority, or ASA, the United Kingdom’s independent advertising regulator, has taken down another batch of cryptocurrency-related ad campaigns promoting several major industry firms. On Dec. 15, the advertising watchdog issued several rulings on ad violations involving six crypto-related firms including Coinbase, Kraken, eToro, Exmo, crypto broker Coinbu...