Please don't get carried away by what's told in the article because most of the info regarding bounties and airdrops are false. You won't get paid in USD or USDT or BTC nowadays, instead, you'll be paid in some altcoin which doesn't have any value when it hits an exchange moreover it takes a long time to get paid. Online ads and Crypto trading have pros and cons. So if you looking for earning during this Corona Outbreak, better join a freelance site like microlancer.io. Do some tasks and get paid in BTC. That will be the better way to go.