Attached is a pic of proposal stats for a project that I submitted a bid on just about 2 weeks ago. Notice, there were 28 proposals submitted, and not one of them were opened/viewed, neither was anyone who submitted a proposal contacted. There are other projects like this as well that I submitted a bid for...where none of the proposals were ever opened. Seemingly, this project, like the others, are likely fake proposals. While I now have an idea of what to look for to spot a fake project posting, I still can't always tell which project postings are fake and which are legit. Just know that there are seemingly a lot of fake project postings on Upwork these days.
