Several rule systems can apply
Prescription status, controlled-substance law, import restrictions and sporting rules are separate systems. The answer depends on the compound, product, quantity, location and activity, so a general source page cannot replace a current local check.
Read the history, not one snapshot
A longstanding account, stable contact identity, dated laboratory records and visible complaint handling provide more context than a single enthusiastic review. Sudden domain changes, copied documents and pressure to move quickly are events worth recording.
Document what can be verified
A source record is strongest when it distinguishes first-hand reports, uploaded documents, moderator checks and unverified claims. Status labels should have a date and a visible reason so later readers can understand how the conclusion was reached.