"It seems to me that it would be great if we tell to those who do not know about our community, and suggest starting to ask and answer questions from those who know about the site, but are not yet involved, because participation in the community contributes a lot to professional growth."
(" which means 1) let's promote about the existence of our community to those who do not know about our community, and 2) suggest to start asking and answering questions to those who know about our community but have not participated yet")
@cubick commented kindly, that if we are having this ad banner within SO, our target may be more like for number 2) that is to those who know about our community but have not participated yet? @NicolasChabanovsky
@nekketsuuu Thanks! I just mean that this example of a slogan about gcc works for both audience (1) who does not know about SOja and (2) who knows but has not asked yet :)