Personally, I would imagine Bounce rate is a strong signal. Immensely strong. Just not as a RANKING factor.
Here I was trying to make a post in English, generic enough so all the people who think bounce rate is a ranking factor could stop thinking that and stop posting about it every time there's an update and would stop doing silly things, such as splitting a perfectly fine page into 3 so their bounce rate would be lower, and along comes Shaddows who wants to confuse everyone and split hairs ... LOL
If there's so much as one post in the next update thread about how someone doesn't rank as well anymore and they include their 'really low bounce rate' as some positive about the site you're soooo getting a -1 it's not even funny.
And, yes I sensationalized the title, just like VanessaFox sensationalizes a bit now that she's a journalist, because I wanted people to read the thread and try to 'get' that I don't care what the size of your bounce rate is when you're telling me how great your rankings aren't but should be...
<NewTitle> Google Uses Bounce Rate As a Ranking Factor! </NewTitle>