Let's say my competitors are at $100/night.. what's a reasonable discount?  

The real competitor of ATM is bank branch, in terms of withdrawing cash.

(For this, your deal killer can not be a direct competitor.

A competitor of ours does it on a platform with smart contract as well as crypto to invest.

According to the Justice Department, RealPage’s algorithm allows landlords to align rents with their competitors by analyzing sensitive data, from renewal rates to occupancy trends.

So if you are going to be a host that outperforms your competitors and want to get fabulous reviews, there isn’t complete down time if you are self managing at the highest level.

Otherwise perhaps your winter people will pay $500 extra if your cap is $500 and that is not what your competitors will be doing. 

For instance:If your area has many corporate offices or conference centers, you're likely to attract business travelers.Family-friendly suburbs with parks and schools often attract families.Downtown locations near nightlife are popular for groups and parties.Review Competitor ListingsSearch for successful Airbnb listings in your area and study their target audience based on:The language in their descriptions.Their reviews (guests often reveal the purpose of their stay).The amenities they offer (e.g., desks and Wi-Fi for professionals, cribs and baby gates for families).Evaluate Your Own SpaceYour property’s layout, amenities, and location may naturally cater to a specific audience.A cozy 1-bedroom apartment downtown might be ideal for professionals or couples.A 3-bedroom house with a yard might appeal more to families.Proximity to nightlife might cater to party groups.Experiment and AdjustIf you're unsure, start broad and monitor who books your property.

Like what others said, you can copy what the competitors are doing in the area, but sometimes it's good to let a pro do it!

Therefore, if you have the best 4 family on the block and your rents are 3x as high as your competitors on the same block, you do not get rewarded when you sell for your good management.