Thanks for clarifying, Virginia. Craigslist job postings are not allowed in the Upwork marketplace. I have followed up Kevin's support ticket about this client, and actions will be taken against the job post, and the client's account as the team finds it necessary.
Yeah, there was not even an invitation to interview. I already told them to make milestones for me, but I just went ahead and submitted an email support ticket to report them. Thank you for the help, everyone.