To add to what coffeecat said, gnome seems to be really slow when it comes to fixing bugs. I submitted a bug in the network utilities package about 4 years ago, and it took until just last year during the Raring testing cycle before a fix was released.
As for helping solve a problem, most of the testing and QA team members are pretty determined when it comes to tracking down a problem. The last major bug I reported during the Saucy cycle had me install 4 different kernels in order to track down the problem, and check to see if if the problem was solved when the kernel team came up with a solution. It took a little longer for the fix to be released then I expected, but it was close to the end of the development cycle, and a SRU had to be applied in order to get the fix in before Saucy was released.
I'm currently running Trusty as my day-to-day OS, and I'm looking forward to finding as many bugs as possible before release in April 2014.
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