Hi Linda,
I thought your post was really interesting. Like you, I too work really hard for 5 stars ratings... But because the rating system here is so over the top strict, I can't risk having a Guest leave any 4 stars ratings a 2nd time if they've given me 4 stars in the past (unless I know I was at fault, which was/is the case when I first opened a new room, when we're doing remodeling to improve, etc., which is what we've been doing the last couple of months, so we factored in lower star ratings and knew we would take the lost of the "SuperHost" status, but decided to do the renovations anyway to be more profitable in the future)....But, under "normal conditions", if I've done 100% on my part and I get a 4 star rating, I keep that Guest's name on file and I won't accept a future reservation from that Guest. I've named that file "Guests who just can't be pleased", I just won't risk them lowering my star ratings. I've turned down 2 former Guests in the last 6 months, who wanted to re-book, but because they gave me 4 stars in the past, for no good reason, I delcined their request. Just thought you might want to know that you might be turned down for a future reservation from a Host like me who HAS gone the "extra mile" and yet you only gave 4 stars too. So there might be a place you really enjoyed staying, but because you gave them lower star ratings, they won't accept you in the future. Also, I'm part of a little "short term rental" community in my area (I'm on many sites, not just here on Air) and us Hosts get together and we exchange notes on "problem Guests" and/or Guests who leave lower ratings... again, ONLY if there was no good reason, so you could be "blacked balled" from other Hosts in that area as well.
Hope I'm not coming off too harsh, but I thought you might want to view it from another Host's prespective. That stated, I know that I'm not the norm when it comes to Hosts. I'm fairly "tough" as a Host and don't put up with a lot of "nonsense" (such as undeserved 4 star ratings) from Guests, as we have strict rules about short term rentals in my area, and it's very easy to lose our license and our good standing. Also, we've put a lot of money into this venture and while it's paying off, we remain vigilant regarding Guest selection and won't accept re-bookings from past "hard to please" Guests.
Anyhow, just another viewpoint...
Thanks again for your comment.