(I’m adding some random ramblings to this ancient and lengthy thread.)
The consensus on this site seems to be, as the conversation on this thread demonstrates, that guests who ask for discounts are bad news.
I’ve certainly been heavily influenced by this, and I can only, off the top of my head, think of one case when I gave a discount, to a New Yorker. After making a special offer to him, I had second thoughts (he came across as rather weird in chat), and tried to get him to cancel, but he wouldn’t. (There’s a thread about that here.) He didn’t cause any problems, but he was rather unfriendly, gave me 4 stars, and in the feedback form mentioned that I should have reduced my prices because I didn’t have an attached bathroom. So this single example, at least, bore out the stereotype.
A few days ago, I heard from an Indian who said he was interested in a two week stay, but said he wanted to book outside Airbnb to save on the booking costs (there’s also India’s GST tax). He wrote a relatively articulate comment (a lot of Indians have trouble stringing together a grammatical English sentence), so against my better judgement, I agreed. He then decided he wanted to see my place in advance to see if it met with his standards, and also made an offer which gave himself a 25% discount on my rates, which at this point no longer reflected the Airbnb fees + the Indian GST tax. At that point, I decided enough was enough, and stopped responding. And for concreteness, the price is proposed to pay was around USD 22 per day, everything included.
Unfortunately bookings are really slow right now, and have been for some time (maybe the local market is becoming saturated, maybe it’s something else), so accepting this offer didn’t seem that unreasonable. But I thought that having a stranger stay for two weeks, who made up rules to suit himself, might be more stress than I wanted to take. Again, I was heavily influenced by forum discussions like the ones on this thread. It’s probably worth noting that haggling is part of Indian culture, so my guest probably thought this was all quite reasonable, and maybe he was right. I don’t think haggling is particularly part of Western culture, though I could be wrong.