Вы меняете и улучшаете, а ваши пользователи вас за это критикуют? Возможно, это лишь «избегание новизны». Хорошая новость: с ним можно бороться.
Цитируем:
«As a startup, you may not (yet) have a large user base to upset when you change your product. Early on, changes are expected and the risks of alienating users are often outweighed by the benefits of a better product experience for users. But keep in mind that at some point the balance may shift, and people who are happily using your product will react negatively to changes — unless you’ve planned ahead to minimize their change aversion».