On FundedByMe we do what we call 'light due diligence', which means that if we notice anything suspicious while working with campaign creators or before a campaign goes live, we will not allow that campaign onto the platform. That does not mean that we take responsibility for the campaigns presented on our platform, however.
As with every online transaction (or real-life interaction) you have to carefully examine the campaign presentation, team members and accompanying documents - and trust your instincts. If something looks too good to be true, it probably is!
We also recommend to carefully view the links provided. Ask around and ask more questions if hesitant. Use Google to search for campaign owners' backgrounds and talk to your network before committing.
In addition, have in mind that things can go wrong along the way, so even if you invest, campaigns might fail sometimes.