To their credit, people are apparently using something that's been deprecated and should be changed regardless. At least, that was their conclusion when it was changed to wontfix. The replies are very rare and curt though, I can't really say it's quality service when you're paying for a product.
Customer support from Google has always been like this as far as I've experienced and heard. There is no way to actually reach and converse with anyone, regardless whether you are paying them for the service or what kind of request it is.
Once a Google employee randomly replied to a complaint of mine about Google+ (I didn't even +mention them). After a few comments and him confirming that it was added to the bugs list, I asked if it was okay to +mention him in the future with similar issues. It was okay. I did. He never showed his face again. (His profile still says "Works at Google+".)
Another Google employee I know online also never replies to anything concerning Google. I know he works on the Google+ project, but I can only hope he passes on any bugs I +mentioned him in.
For Youtube, you can post in their forums but merely hope for a reply. Copyright complaint disputes are no priority, either.
I haven't used many paid products, but I have read about their customer support being one of the very worst and also have never been able to find a single e-mail address or phone number to get support at for any service.
Edit: By the way, I would have moved away from the Google Apps Engine a long time ago if my app went down every morning during rush hour for 10 days straight.