Ana,
Thank you for response.
I find it interesting that your first instinct to define 'Experienced Host', is to broaden the horizon beyond Airbnb. It may be a perfectly valid point, but Airbnb evidently never considered it . There's no 'show us your CV'. And if there was, we can potentially envisage Airbnb awarding SH solely on track record of hosting on other websites, without actually yet hosting on Airbnb. This is the flip side of your coin or logic taken to its conclusion.
However, since your suggestion is outside Airbnb's current remit, we are rather left with the scenario noted by Susan. One can literally attain SH for 10 stays of a minimum of a day. For those with multiple properties of 10 or more, it can conceivably be obtained for a single day's hosting.
Yet, if we are to be more inclusive of the vast majority of Hosts, who have far fewer properties and / or listings, evidence may be gleaned from Lizzie's thread from June 2018 'Welcoming All Superhosts' that currently shows more than 2,100 posts up to and including the last evaluation 1st April 2019. Therein, we find ample proof that SH was attained in one or two quarters. Without an exhaustive search, I could easily find 3 examples of 9 Reviews for one - two quarters, and quite a lot in the 10 - 20 Reviews range.
Any way we wish to look at it, it's difficult to make a case for labelling 'experienced' to an Airbnb Host in one or two quarters given that 'experience' is commonly equated with a significant period of time. and more specific to this enterprise doubtless dealing with a variety of persons, cultures, circumstances and/or contingencies. Moreover, there are T&Cs particular or peculiar to Airbnb. (eg phantom Deposits, dubious Cancellation policies, etc).Consequently, it often requires a variety of experiences to become familiar with the modus operandi and machinations of the website.
Still, we find CC littered with new or quite new SHs asking Help for incredibly simple issues, which if nothing else conveys their lack of experience!
In sum, 10 bookings of whatever duration are unlikely to give a sufficient variety of experiences.
This brings us to another comparative factor. A Host may take a year or more to reach SH, in the process acquiring considerable more bookings and experiences than the newly hatched chicks of one or two quarters. For example, a Host may take two or three times as many bookings & with it reviews than those with less than 10 or 20 Reviews for one or two quarters, and their average is below 4.8. This obviously more experienced Host simply may not have obtained the requisite average so quickly, and at times it can be years, as indeed in my case, over 6 years hosting on Airbnb (and other websites), without ever being SH, and only in the past 12 months did the average start to nudge up to 4.8.
It's worth adding that at the last evaluation I was faced with a peculiar choice: At the evaluation date it showed 4.7 average. 2 days later I had a Review from departing guest 1st April, and following this 5* it nudged me up to 4.8 and with it the automated change in notification 'Everything is looking good'. Indeed, with the best part of 3 months to go to next evaluation, it led me to contemplate that I was guaranteed SH July 1st on the condition that I didn't take a single new booking and with it the possibility of non-5 star Review that would drag me back down to 4.7.
I was so struck by this paradox that I wrote a quite detailed article about it, posted on Quincy & Lizzie's latest thread at the time: Superhost Evaluation Timeline - 2019 first quarter (There were very few contributors, and it doesn't seem to have been read by many people.)
In this article, I expressed my 'opinion' as to answer your question: I suggested 18 - 24 months with a 100 Reviews or equivalent 365 days hosting, along the lines of old fashioned apprenticeship, as a good bench mark to qualify 'Experienced Host'.
