Hello again Attila,
First off, I want to apologize. We did a bad job on the issue report you cite. It's already reopened and we're taking another look. Should something like this happen again in the future, posting here is a fine way to get us to take another look at an issue. Moreover, if we're giving incorrect information, we need to know, so that we can fix it.
That said, I want to assure you that we do not have bots closing issues. In this, case we closed the issue because we hadn't heard from you for a week, and at the time we thought we still needed more info from you.
Next, when it comes to reviewing new issues, I'm "the management," so I can be pretty confident in saying we do not encourage our staff to close issues: rather, we encourage them to triage them.
We offer the issue tracker because you shouldn't have to pay for support to report bugs, just like we offer several Google Groups because you shouldn't have to pay for general advice and discussion. Investigating possible new bugs, providing general advice, and answering questions on Stack Overflow -- these three channels are handled by the same team within Support -- scale to benefit all of our customers, so we can justify doing it for free, with a fixed-size team. But I'd be doing you a terrible disservice to pretend that we can provide SLAs (service level agreements, including guarantees on response time) on any of these one-to-many forums. If you need SLAs on support issues, check out this page and appropriate links from it.
Regards,
Jesse Scherer
Technical Program Manager, Google Cloud Platform