User Care Assure's profile description appears to be an ad for an Australian company involved in their National Disability Insurance Scheme.
The profile was created within the last day; the only activity posted was a now deleted "answer" which was (quite likely AI-generated) badly formatted nonsense.
I flagged the answer as "not an answer" so I was no longer able to flag it for moderation attention once the full scope of the issue became clear.
I know that the AI-generated content is already a problem and against site policy. I am assuming that using the platform as free ad space is also a problem? If not, then should we make it explicit?
Edit: User profile's has been deleted on math.stackexchange. Still exists in Math.overflow.
Update, 8/15/2024: Mathoverflow profile also deleted.