The phrase "to trust that user" means to believe and have confidence in someone's actions and decisions within a specific context or situation. Full definition
By trusting your users to engage and then demonstrate their level of learning — through an end - of - chapter quiz, for example — you invite them to engage with the material. (elearningmind.com)
If you are not comfortable with the idea of your contributions being collaboratively edited by other trusted users, this may not be the site for you. (law.stackexchange.com)
It supports 18 Android devices and trusts users enough to let them to log activities that weren't counted by the tracker. (techradar.com)