Coinbase CEO Brian Armstrong has raised red flags on the increasing number of crypto tokens being released into the market on a weekly basis. Owing to this massive influx of new tokens, he said, the evaluation of each token is no longer feasible. Coinbase CEO Brian Armstrong has raised red flags on the increasing number of crypto tokens being released into the market on a weekly basis. Owing to this massive influx of new tokens, he said, the evaluation of each token is no longer feasible.