Airdrops are a great way to earn free crypto. But even better than a temporary airdrop is a crypto giveaway without a deadline. That’s what Brave offers. Brave, headed by co-founder and CEO Brendan Eich (creator of the JavaScript programming language and former Mozilla CEO), is a privacy-focused browser with utility tokens built into its system. You can earn basic attention tokens (BATs) as long as you use the browser. But before I tell you how you can earn…