Obviously the OP was looking for the word peer.
Quora expects members to report infractions against Quora’s policies, since they cannot detect all the infractions themselves. So yes to the letter of OP’s question.
The spirit of OP’s question, of course, by using the term “colleague”, is: should not group allegiance count against reporting to Quora? I have group allegiance to fellow Quorans who I see making good contributions, and there is a hell of a lot that Quora expects we report on, which I regard as at best chickenshit, and at worst specious. So yes, I empathise with what I suspect OP’s premise is.
That aside, I agree with Maura Rudd: see Maura Rudd’s answer to Is Quora encouraging a culture of reporting on one’s colleagues? If someone violates community norms egregiously, e.g. by issuing death or rape threats, by being insulting, or by spamming, then they are no peers of mine, and I am happy to dob them in.
(There are one or two respondents on this thread that I do not regard as peers, also, for their sneering attitude towards Quora as a community. )
I am also happy to make my own decision as to what counts as an infraction worth reporting. It’s not like Quora is paying me to enforce their standards.