In recent years, access to science content production has been democratized. New actors can make their discourses reach large audiences through popular platforms with no institutional gatekeeping. However, it remains unclear which conceptions of the science-society relationship underlie science content created by non-corporate individuals. To explore how science communication cultures of boosters and critics inform this kind of science content in Spanish, we conducted a qualitative content analysis of a sample of 50 videos from ten YouTube science channels. Our results suggest that more accessible science communication does not necessarily entail a democratized view of science but may reinforce a traditional perspective.