The blocked material was related to harm reduction related to illegal drug use.<p>There's a strong possibility that some harm reduction discussions could be interpreted as promoting illegal drug use, especially within the context of Facebook's rules.<p>Harm reduction strategies aim to minimize the negative consequences of drug use without necessarily promoting abstinence. This means providing information like:<p>- Safer injection practices<p>- How to recognize and respond to an overdose<p>- Drug interactions and testing<p>- Detailed instruction on drug acquisition, drug usage techniques, supplies and equipment<p>Facebook's rules on drug-related content are designed to prevent the sale or promotion of illegal substances. These policies might be too broad, leading to the removal of legitimate harm reduction information.<p>And some advocates of illegal drug use sometimes communicate in the language of harm reduction, which can make it very difficult for a moderator to distinguish what material follows the rules and what material does not.