So what should be used for canon?

Canon by Scotts definition is anything within the FNAF Universe. This includes the Original Novel Trilogy, which we wouldn't consider to be in continuity. These books may be canon, and help understand events in continuity, but unless we choose to accept the entire series as in continuity (Return to the Pit and all) then it should be treated as merrily canon, and separated just as the Novel Trilogy is.

I mean, Scott has come out and said that the Trilogy isn’t canon, but not for Frights or Tales

He said they weren't in continuity, where as Frights says it's from the "uncharted corners of the canon" and Tales from The Pizzaplex says it's "set in the universe of the new games" either suggesting they're in continuity or just canon, just like TSE

Sigh

Sigh what?

Woosh

This isn’t reddit

Doesn't matter!

No, this isn't a necropost. It's still annoying though.