I've spent about an hour to go around this forum and as I can see there are a lot of twitter campaign that pay in BTC or altcoin/token that mean earning Bitcoin with twitter is obviously possible. But to earn it's not easy to earn big amount of Bitcoin with twitter campaign but you need to have a huge amount of real follower.
There are three twitter campaigns but with two last campaign you must have about 50k real followers to earn max payrate 0.0005 per day, it's a really big number.