Lots (and lots) of bounces for the same user. Why?

[Stuart Wright]

So we got blocked from Amazon SES for a while and we're trying to figure out why.
We think it's because we had too many 'complaints' caused by the same user getting sent a **** ton of emails over a short period of time and them all bouncing.
This is one page of the bounce log of several similar looking pages.



Here are our settings:


I would expect their account user state to be changed to email invalid (bounced) but it hasn't been.
The user's account...

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Lots (and lots) of bounces for the same user. Why?

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