This article analyzes the tension between freedom of speech and disinformation in the context of public debate in the information society. Its aim is to demonstrate that the source of contemporary communication problems is not freedom of speech itself, but its treatment as an absolute value, detached from any reference to truth. The analysis, conducted from a normative and axiological perspective, shows that in this framework, freedom of speech ceases to fulfill its cognitive and community-building functions, and the communicative space is transformed into an environment conducive to the spread of disinformation. Consequently, this leads to an increase in information overload and a decline in the quality of public debate. The article argues that restoring the relationship between freedom of speech and truth is a prerequisite for preserving the cognitive and social functions of communication.