@Debbie440
i've hosted 6 years and never once sought the advice of other Hosts how to deal with inquiries or who I might or might not chose to accomodate. I find it irrelevant and futile. It's rather a matter of moulding your hosting based on your own personality and circumstances.
Here you've considered the advice of Noel who runs a Guest House, a completely different experience than yours as a live-in host, with a single room in your home.
Personally, I would find his 'general rule' totally irrelevant to my own experience, a live-in host like yourself.
For example, when I began I also insisted on Verified ID, and then after a few years experimented without. I discovered that it didn't make a scrap of difference, because I continued on the same path as I started, namely making sure that I screened or vetted the guest to my satisfaction. Thus when Instant Book was introduced I igorned it because I could see from its criteria that it is unsuitable for my circumstances and could only lead to unnecessary complications and cancellations.
Similarly, Guests without reviews has never been a hinderance, because everyone has to start, and when I began far less people were using Airbnb, so of course over the years many inquirers were new Guests.
I would only suggest that If you're not sure about an Inquiry or consider it a possible scam, either disengage or contact Airbnb to register your concern.