These are the methods you can use to earn free cryptocurrency
Eg :
1. AMA(Ask me anything)
2. Testnet
3. Play to earn games
4. Bounty
5. Ambassador Programs
Yeah ambassador and bounty campaign are actually cool ways though but it has became obsolete because especially bounty campaign it doesn't pay a decent amount to the hunters since the project isn't that trusted except for some bounty's that they want to pay hunters with stablecoin like usdt, busd or any other reputable cryptocurrency that can be immediately tradable. There have been series of bounties that launches every single day but doesn't meet up their target if a participant keep doing bounty's without any earning at least $10 to $50 they could get discouraged since no payment is forth coming. Likewise to the ambassadorial program most project pays with their native tokens to their ambassadors, but if talks about mods they are being paid in usdt for their services at least is actually good work on some projects doesn't accept people because of trust issues.
Being a bounty campaign manager is not as lucrative as it has been. Projects are paying way way low compared before where bounty managers receives more than the bounty hunters. Though being a bounty manager today is better than being a bounty hunter since being a bounty manager assures you that you can get something like a pay for your work. It's a good thing that more and more bounty managers are requiring bounty projects to give another coin that has a value, even if it is small, atleast bounty hunters still has an assurance that they can get something from their work.
Yeah thanks to list that as well I didn't even mention that, I think nowadays becoming a bounty manager is becoming more competitive whereby for one to secure a project is very difficult and even successful secured one I m not sure they really get some decent pay out. Watch now those that was well known then hardly manage campaign now although some of them are being selective as they don't want to promote scamming project whereby it will tarnished their image and reputation so they avoid managing such project, and even those that manages now doesn't really used their main profile rather will request the project to make account and the upgrade it to copper member then they can use it to launch the bounty just to secure their real profile.