Wonder Woman's history says quite a lot about real life history. Created in 1940 by a husband and wife in a poly relationship with a woman said to be one of the inspirations for the character, she was first published in 1941 and started by fighting Nazis.
Later that year, she joined the Justice League of America, an assembly of superheroes coming together – from across boundaries between two publishers – to fight evil..
.. as its secretary.
Matt Santori-Griffith : For the purposes of this conversation, I would define "queer" as involving, although not necessarily exclusively, romantic and/or sexual interest toward persons of the same gender. It’s not the full definition, but it’s the part I’m narrowing in on here.
.. but given that she's been romantically involved with more than one gender, she's clearly bisexual in attraction and behaviour. Until she's asked, we can't know how she identifies, and Rucka goes on to say that having her be asked would be too clunky.
Alas, the bisexual erasure in the original interviewer going for 'queer' rather than 'bisexual' is echoed by the reporting of the story in The Guardian: Wonder Woman writer confirms superhero is queer.
This is what erasure looks like.