Stolen from Arsenal Reddit's tiering system, here's how tier 1/2/3/4 can be interpreted: Tier 1: Sources classified as Tier 1 are those that have been proven to be reliable, unbiased and truthful on a consistent basis for a long time, as well as those with an established link to the club. If a rumour is reported by a Tier 1 source, it can generally be trusted as truthful. Tier 2: Tier 2 sources are those which have shown high levels of reliability and truthfulness, but may still make errors or have inaccuracies in their reports. Tier 3: Tier 3 sources are news organisations or journalists that could be truthful, but have a history of inaccuracy that makes them too unreliable for Tier 2. A report from a Tier 3 source should be taken with a pinch of salt, but may turn out to be true. Ideally, a more reliable source should be used to confirm a Tier 3 source's stories. Tier 4: All other sources that are too unreliable to be classed as Tier 3 or above fall into Tier 4. Tier 4 sources typically include tabloids, ITKs, and sources known for falsifying stories to generate clicks.