Tasmanian Tigers Are Extinct, So Why Are Locals Reporting Sightings?

These sightings, if true, would reverse the belief that the carnivore has gone extinct.
Reported sightings negate the belief that the carnivore has gone extinct. 

Scientists Are Working to De-Extinct the Tasmanian Tiger

Extinction of the Thylacine

Tasmanian tiger: Citizen scientist goes bush in quest to solve extinction riddle

Tasmanian Tigers Are Extinct, So Why Are Locals Reporting Sightings?

Tasmanian Tigers: Extinct or Elusive?

Juraussie Park: Scientists vow to bring Tasmanian tiger back from extinction - NZ Herald

What the Hell is a Tasmanian Tiger and Do They Still Exist?

Thylacines likely went extinct much later than previously thought new research found, The Examiner

Return of the Tasmanian tiger? - The Statesman

Could it be argued that dingoes are partially responsible for the displacement and extinction of the Tasmanian wolf/tiger? Do any biologists on Quora have an opinion? - Quora

Officially 'extinct' Tasmanian tiger reportedly spotted in Australia - National

Island Conservation Potential Tasmanian Tiger Sightings Raise Eyebrows - Island Conservation

Resolving when (and where) the Thylacine went extinct - ScienceDirect

Back From The Dead? Reported Sightings Fuel Hope For Return Of Tasmanian Tigers : The Two-Way : NPR