Reports become test cases the matcher is graded against before an update ships.
Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math,
and examples like yours decide which differences should count.
Shipwreck Sentry100%
$0.10↑#245660.00↓2.8 years↑
"As long as an artifact entered the battlefield under your control this turn, this creature can attack as though it didn't have defender."
+1 more matching line
turns-off-defender-self, artifactfall, drawback
Thraben Gargoyle // Stonewing Antagonizer95%
$0.12↑#218690.31↑10.4 years↑
"Defender"
turns-off-defender-self, drawback
Krotiq Nestguard94%
$0.07↑#239130.04↓1.4 years
"Defender"
turns-off-defender-self, drawback
Ludevic's Test Subject // Ludevic's Abomination94%