As you have written-

One of the things that I read and learned when I learned about crypts is that cryptocurrencies are based or supported by people's trust, that is, the most used cryptocurrencies, acquired, retained and exchanged by people, these are supposed to maintain or increase its value, according to that logic of support.

Low price of Steem suggest that people are not trusting Steem and they have no faith on its future. It happened because stinc and the top SP owners were not ready to share profit with the common people. They made it hard for the new comers to write comment or post a blog here because of RC system.