It is impossible to be succeed in the project without team member.I never encounter project with no team member,it will turn out to be scam.
Yes it is no longer a surprise that most ICO project who do not display their team members have been tagged and considered to be a scam project because it is very difficult for the project to entice investors to participate in their crowdsale. I remember some months ago when i decided to participate in a project whose team were not verified and it all ended up to be a scam project. So one of the rules to stay safe is to check the authenticity of the team members before participating in the any project be it bounty, airdrop, or ICO as the case may be let's tale this into considerations.