I will also says signature campaigns, based on what this community is all about, that's why this community become one of the well-known as it started this whole signature campaign first that pays in bitcoin and then later it evolved in bounty paying campaigns which is in token.

And historically, there are bounty that didn't end well, becoming a scam, and so the project failed miserably and then participants complaining about the rewards and so there are scam accusations on a bounty campaign. So for me it's better to go for signature campaign first and then measure how effective it is.