It happens to me, and there are two consequences: 1) your email becomes kinda of a Twitter timeline, you from time to time cherry-pick emails to reply to, because they are too many that require a personal direct reply, and it is impossible to cope. 2) You have to make a decision, if you want to prioritize for money, you are likely not going to do the best for the user base: it is perfectly reasonable but not my pick since I'm already sponsored to do my work. However it is very likely that you get a money offer to put into the project something you don't like, and this is going to be actively bloating the project. Not an easy one.