@Roi4 When it comes to guest compensation, I feel that there are 3 basic types of amenities:
1. Essential to basic functionality/safety (bedding, electricity, running water, exterior locks)
2. Inessential but core to guest expectations (WiFi, swimming pool, breakfast)
3. Inessential, extra conveniences (microwave, dishwasher, BBQ grill)
If something in the first category isn't working, the guests have every right to cancel for a full refund; if they choose to stay anyway, they should receive a very significant price reduction.
In the second category, the home is still usable but it's good hospitality to supply the guest with a rebate reasonably proportional to the cost and inconvenience of sourcing an equivalent amenity elsewhere. (In some cases WiFi is more appropriate to the 1st category these days, but still...)
The third category comprises all the things that can simply be swapped out for another existing feature. You can do without a microwave or grill as long as there's a stove. And you can do without a dishwasher if there's a sink and draining board. So it takes a few extra minutes to clean the dishes; when did people become so pathetic that they deserve $75 a day for the horror of using a sponge and a little detergent?
I do recommend making sure the guests are adequately supplied with everything needed to hand-wash dishes, and I also like @Inna22 's idea about disposable plates and cups. But I'd be very wary of guests who start demanding compensation. First off, no amount of money you give them is going to buy a good review from people who are obviously douchebags, so don't let yourself be held to ransom. And secondly, what happens when they find something else "wrong" with your property? Another $75 a night?
Whenever a guest expects some kind of refund while their stay is in progress, call their bluff: "If the home is no longer suitable to your needs, you may cancel the remainder of your booking and receive a refund for the unused nights of your stay."