@lizardsquid Unfortunately it's almost never actually true. Every couple of years someone claims to have cracked the thing, although none of them have ever bothered to do anything like, say, produce a translation or earn the consensus of other scholars.

The kicker for me was "The solution to the codex of MS408 was developed over a 2-week period". Two weeks, you say! Gosh, it really sounds like he labored long and hard over this. Outsider decipherments do occur (Linear B was cracked by an architect), but they still take years of careful work and collaboration with other scholars. Even Champollion (Egyptian Hieroglyphic) or Michael Ventris (the Linear B guy) didn't do it alone. In *two weeks*.