My personal opinion is that specifying which dialect is being used in the posts (not only answers, but questions too) should be encouraged. Okay, not everyone may remember to do it, but the community should edit the posts to specify the dialect when it was not mentioned in the post to begin with, or ask the OP to specify it themselves.
This seems reasonable (to me) for a few reasons:
- It'll prevent possible conflicts from arising, as well as possible consequent schisms in the community;
- Though the spelling has been standardised since 2009 between the Portuguese and the Brazilian dialects, there are still many differences in spelling, expressions, words and grammatical nuances (and many people in Portugal couldn't care less about the new spelling reform);
- Because of the above, not every question will be pertinent in both dialects (see this one and this one for example, which are comparing pretty distinct words for Portuguese Portuguese since the pronunciation differs greatly);
- Other sources may not always make the distinction, so it would be great if we could stand out for this too, in addition to having top-quality content.
Don't take me the wrong way, I know most of the community will be comprised of Brazilians. But it'd be great if the community could be welcoming to everyone who speaks Portuguese, and help make the language as clear as possible for anyone who is speaking it or at least trying/learning to. The language is tricky enough for a person who speaks one dialect, there's no need for us to further complicate it by not specifying that an answer pertains to a certain dialect and not to another or to both.