I don't see why its not possible, facebook at least has language settings.
Like the KR and CN tabs are completely useless if you don't speak their language. I think if language was a setting that you could filter by instead the site would be much more user friendly.
You are right though, there are plenty of people who add nothing to the discussion and only want their few cents.
Yes, you have right ! User friendly steemit is the key for growth! Although I think adding features is a pretty slow process on Steem (not only this blockchain though) We will get there slowly but surely.