My issue is projects that ask for the public to submit bug reports. But when the public does, they get either:
1) Completely ignored for years on end (1)
2) A snide, "if you want it fixed, fix it yourself" response.
3) A snide, pass-the-buck response. "That's not our bug, that's a bug in Java, tell them to fix it."
It's irritating. I've learned to never bother putting in bug reports, even if the project asks for them.
(1) Not even triaged in the worst cases-- Chromium, I'm looking at you. I finally got someone to look at it after 2 weeks by grabbing an email address off the bug tracker and nagging them to do so. By that time it'd turned out some dev has stealthily fixed it without even consulting the bug database first, apparently.
(2) Why do these projects ask for bug reports from the public if they don't want them? Just put up a message that says, "hey we don't WANT you to put in bugs, either write code or go away" and at least they'd be honest with their users.
(3) Yeah, well Java hasn't fixed it in 15 years, and there's an easy workaround you could apply, but if you're ok having shitty software because Oracle doesn't give a crap, I'll just use something else.