it's anecdotal.

another anecdote, when first trying to raise awareness of the issue, when mentioning it to members of the community I never got the response "wow, how could this happen in computer architecture?" rather the response tended to be "wow, I can't believe it finally got bad enough that a student died"

Because these anecdotes are unsubstantiated, they can come across as sour grapes, which I think damages your good cause of exposing the serious misconduct for which there's actual evidence.

i think this is just anecdotal; this person is clearly in the community.

i'm not sure this data is useful, because we'd disagree on "people with the right connections".