[Jackson 3] Default value(true/false) of `DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES`

[Joo Hyuk Kim (Vince)]

# Background

This is offshoot from databind issue [1]"(for Jackson 3.x) Reconsider DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES default setting".

Asking here also, because some might not follow Github issue tracker.

And since this topic has been controversial, we might as well get more ideas before Jackson 3 release.

# Main

Simple question : What should be the default value(true/false) of  `DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES`, and Why?

[1] https://github.com/FasterXML/jackson-databind/issues/493

Let us know what you think!

Thanks

Joo Hyuk Kim (Vince)