Although we might sometimes evaluate new ideas, discarding most suggestions is the most important way to maintain the overall integrity of the software structure for all its many users. Any new feature, however small, might break the way the theme works for some users in some situations.
Like a small spine on a finger may rot the entire hand and kill a person, same is for the small “harmless” changes that many customers demands. But saying yes to one may mean harming the integrity for thousands of other customers.
For more info: https://blog.intercom.com/product-strategy-means-saying-no/