There are those who take advantage of the generosity of others...and this causes resentment. There are those that give endlessly...But they do so with transactional motives (in other words, it's not freely given). In both cases, an inability to say NO becomes problematic.
I once learned that there is no YES without an authentic NO. People feel that they have no choice when they lack the ability to decline. Thus, a well cultivated and loving NO is something we all must learn to invoke for good self care. In this model, every YES is given in freedom.
Imagine a different community paradigm where those in need can ask for help, members of the community can say yes or no, and everyone trusts that both the request and the response are genuine. This removes the discomfort, blame, and resentment on both sides, as each person owns their request and response.
This is my vision...my hope.