Better yet, here is another way to think about how toxic it can be for a learner.
* They have an assessment coming up and they pay someone else to do the work for them (contract cheating)
They obviously feed them the assessment doc, requirements and all that. The person solving the problem does it and the student hands it in.
Oh look we have bypassed actually learning anything
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This is similar for an expert, it is quite noticeable when they comment on things they aren't experts in unfortunately become a meatproxy for the bot as their skills degrade to the bot level or further and simply just trust it.
Pretty much, any implication or action that is resulting in plagiarism is going to result in a degradation or not even being able to reach that level in the first place.