I would have no trust in what is presented on social media. Nowdays you can fake anything on social media. Followers? buy some, engagement? as well. Why would you rely on such things when you invest in a project? The same thing applies to LinkedIn. Why would you trust their LinkedIn page? You can simply put anything up there and none of the info you provide have to be valid. How are you going to check the veracity of their profiles? YOU CANNOT.

Code is Law. It is the most important thing when any ICO present a project. If they own it and it is complex, something a great team of developers could execute, and is functional, that is when the team should be trusted.

Is their code open-source? It is available on github? How about its developement? Have a team worked on it for a long period of time or is just a 100 lines of code of filled of variables and brackets?