It is good to join a lot of bounty campaign but you must manage it properly because of you did not do so you cannot got a payment on it. Because joining a lot of bounty campaign is too risky because there is a tendency that you cannot manage some of them and it was stressful especially it is 50 bounty campaign but the good point of it if the campaign ends you can got a lot of token but you must sure that the campaign was not a scam.