I maintain some open source projects, and honestly, I've never considered chiming in on an open bug ticket rude. I also have never considered relating your experiences about my project on a forum rude, either. Don't get me wrong, I've had plenty of negative experiences with rude posts from users, but neither of these qualify to me unless the posts themselves are rude.
Something like this is fine with me: "I'm having this issue as well. It's unusable for me without this feature, because my use case is such that..." In fact, this is downright helpful, because I may be able to offer an alternative solution using already-implemented functionality.
Here's the same post, but rude and unhelpful: "I'm having this issue as well. This project is useless without this."
People often judge the merits of a project based on their own use-case and nothing more. If they can't use it for their use-case, they can't imagine any other use-cases where it's useful, and so the project is deemed useless (or some other hyperbolic, universal judgement of worth).
Something like this is fine with me: "I'm having this issue as well. It's unusable for me without this feature, because my use case is such that..." In fact, this is downright helpful, because I may be able to offer an alternative solution using already-implemented functionality.
Here's the same post, but rude and unhelpful: "I'm having this issue as well. This project is useless without this."
People often judge the merits of a project based on their own use-case and nothing more. If they can't use it for their use-case, they can't imagine any other use-cases where it's useful, and so the project is deemed useless (or some other hyperbolic, universal judgement of worth).