Thanks @Sarah977 This sounds simplistic, yet there are several implications.
1. It excuses Airbnb for throwing at us fake inquiries that they cannot control. They need to fix this issue, they are a public co with a huge financial muscle. We make them a lot of money, for them to not be able to address the issue!
2 . I have found out that at times, these spamming inquiries, are hidden from my inbox, they can only been seen from the welcome-control centre page. I suspect that this is due to to the fact that Airbnb can figure out that some fake inquiries come to me, so they put them aside, that is the only conclusion i can arrive to, YET, these inquries remain non replied to and still affect the response rate.
3. At times, the computer generated spamming inquiry uses the same name (example Rosa) for two different inquiries. So in the past i have responded to the first inquiry of Rosa asking her to stop spamming, yet the second request I have not replied to, thinking is the same Rosa. I only found out that there are were different spams, when I insisted over the phone, that each inquiry be reviewed with me, as I was going mad, trying to figure out which ones I had not responded to.
3. I have been advised by Airbnb to immediately report these spamming inquiries. When I do this (by marking 'report the user' ) the inquiry gets deleted and as I have been told it is not counted in the calculation of the response rate, yet, analysing oen by one all the inquries and the ones I did not respond to, I found out that the later is not true. Even these inquries are counted and Airbnb is not taking owneship of the issue.
4. When these inquries are removed from the inbox a non avid Airbnb host wont be able to see them and know that they have counted in the low response rate.
No matter how you look at it, Airnbn is at fault and has not cared to find a solution, even temporarily, by allowing manual corrections to reponse rate, when these fake inquries are reported.