Not exactly true. Maybe a handful out there have been disrespectful, but I've seen a lot of constructive posts and threads without insulting or disrespecting the devs. And punishing the many for the deeds of the few is not a really good way to go.
If you wanna do the "treat others like you wanna be treated" then the community has given a lot of communication for the devs to see about the issues as well as suggestions on how to improve on said issues. So if we offer them communication so they ought offer us communication in kind? That's exactly what this thread is complaining about, so your logic works, even if your assumptions were wrong.
Complaints aren't disrespectful in themselves. I worked years in complaints, most of the stuff I've seen on the forum I'd have found to be reasonable if I was on the receiving end, because they're not being nasty about it, they're giving good detail as to why they're not happy and giving answers as to what would make them happier.