These days, most of the projects don't get successful fund raising campaign.
IPOs get funded anyway. ICOs are not like any equity share. So fundraising can happen just for the sake of being a scam that is not a regulated security. You have to be careful where you invest in. That "successful" is a vague term here because back when Ethereum was first launched ICOs became its use case.
I have no data about bounty though, but it seems almost all the bounties are just waste of resources.
If you dont have the date, you should not make blind accusations based on assumptions.
Social media bounty brings no benefit to the project in my opinion, while signature campaign do a little. What do you think?
Wrong. It is the opposite, take a look into the discussion of this thread -
Signature campaigns and some discussion about seoYou can get an insight into thow signature campaigns have shaped the marketing of many crypto-based businesses mainly the gambling sector and mixer sector. One can provide a service and market it in this manner because a lot of crypto users are using this forum.
On the other hand, bounty is a good way to promote your ICO ("scam") and allow more fools to invest in to so the team owner ("scammer") get paid more.