Unfair punishment

This is annoying because I'm killing it on the other 3 criteria...I canceled on one guest with plenty of notice. 

This summer, I've gotten many more cancellations, some for multi-night stays. So potential guests can fill up my calendar so it's unavailable to other people and then cancel without penalty of any kind. People mostly say their plans have changed, which is fair, and I don't blame them - I've cancelled reservations myself when my plans changed. I can change my cancellation policy to punish them financially, but I really don't want to do that. [I ended up changing it slightly to require a fee for last minute cancellations, but that doesn't help with people who keep many days in reserve and then don't end up staying. If I could base my policy on how many days they reserved instead of when they cancelled, I would do that.]

I don't really care about being a Superhost, but having it removed for ONE cancellation is rather frustrating...