Hi @Marj3 I have regretted accepting almost all my past guests who proposed a discount. They tended to be the most demanding, the most annoying, and constantly expected Waldorf level service from me as as THEIR host. After I learned this lesson, (and it took me a few times to realize this was a trend), I now decline every guest that asks for a discount. No fuss no muss. Usually a polite message that states "I am sorry but I do not offer discounts. However airbnb has thousands of listings that fit every budget. Best of luck on your airbnb stay." Followed by my decline. But perhaps you'll have better luck.
While I certainly understand that $10 means a lot to some, it also means they can't afford to stay in your home. There are listings for $90. I think the problem with bargaining guests is that if $10 or whatever is that important to the postential guest, the $90 they pay is EVEN more important and they need to be certain that they will be getting their $90 a night worth out of their stay in your home.