Find right ICO is not that simple. Firstly look at the team, estimate their experience and check their Linkedin. Then move to web site, quality really matter. Another point to consider is community, how big is it. Don't forget about ratings .
1. Linked-in. You know I have an account there, most linkedins I sent were simply accepting my friend requests no questions asked. So what does it prove?
2. Websites currently cost around 1-2k. It can be made from a preset.
3. Community... telegram and facebook can be populated with bots, it costs like 1k for 20k people. So it proves nothing.