Please note firstly that I'm referring to the questions here in this private beta until the graduation to the public beta. After this, the users are free to ask in the language they think is better to them.
What I'm noticing is that the majority of questions are being asked in Portuguese, and consequently the answers too (including the ones from me, I know, but I'll do something after this discussion). But that's becoming the opposite of one of this site's proposal, that is to be a good source of information in just one place for people learning Portuguese. But if a great part of the questions and answers are in Portuguese, what would be the benefit for those who know just a little? They would need to ask again the same questions that could (also) be in English? Now indeed there would be no difference searching on Google, because the percentage of results in English and Portuguese would be the same in PL SE.
Take as an example the Japanese SE. It's very very rare to someone ask a question in Japanese there, even though that SE is about Japanese language, and follows the same pattern as Portuguese SE.
I think we should translate at least those basic/common questions, because limiting the user's Portuguese knowledge to be intermediary and up, is quite unwelcoming, as this is a Portuguese Language SE, a place where people learning Portuguese can ask questions.
And by the way, the most number of visits to SE sites comes from Google searches. And if someone comes here, in a website in English, with a question in English, wanting to know the answer to a question he/she has about Portuguese, isn't that person an English speaker who is learning Portuguese? Why to leave all the questions in the language they still don't understand?
Ok, so this is already decided..
It seems like this site will be mostly for Portuguese speakers, instead of welcoming Portuguese beginners too.
I'd prefer much more helping who is learning instead of natives with questions (not that they don't need help), but if you all have a different opinion, no problem.
After 8 months and rereading this question, I realized that it's actually proposing something kind of nonsensical, and defending another nonsense. I wasn't understanding quite well the role of this SE yet.