gn_wendy - 5:39 pm on Nov 5, 2009 (gmt 0)

are you publishing the same comments on the both versions of the page?

Yes, but since they are reviews they tend to be rather long-winded.

what is your ratio of the English written content

It varies. Worst case pages with lots of reviews have as little as 15% English.

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I would like to stress that the following information is mostly guesswork and has not been tested yet. These are merely observations and not to be taken at face value.

For the affected pages it seems that the red-line is drawn at ~60%. That is to say English vs Spanish 60-40.

However that is only where the problem is bilingual. If the content is multilingual you can get closer to ~40% English... so long as none of the non-English content reaches higher than ~40% in and of itself.