It sounds like OP has a feature requester who is taking advantage of their passive nature. As you stated people want to avoid conflict, and based on what OP wro

It sounds like OP has a feature requester who is taking advantage of their passive nature. As you stated people want to avoid conflict, and based on what OP wrote it's obvious this person is taking advantage of that. The only options here are to either ignore them or confront them directly. It helps that asking them for money for all this support they want, and then them refusing, vindicates you and allows you to just flat out ignore them.