I used to be annoyed by the default US dictionary red-lining words with Australian spelling. Now I can be annoyed by this dictionary red-lining just about every word I type.

Examples of "wrong" words include:
adults
including
trams
speeds
required
points
seating
driver
months

It seems many plurals and completely normal and common conjugations get red-lined, making this dictionary sub-standard and actually pretty pointless.

I'm turning spell check off altogether. Better to have none than one that's consistently wrong.