I have only been on for a day, but from what I can see, most of the topics that are trending are things related to steem and blockchain. This obviously wont attract the general public. There needs to be more content that is applicable to mainstream until they are on here, but they wont come unless it is here already.
I think the best chance is to cultivate the groups that are being censored elsewehere. This will bring controversial people, it will bring good and bad, but the platform will be dynamic and most importantly, free.
This thing has 20+ million in market cap. This shows there is way more potential in the minds of investors than it is living up to.
Welcome to the next big thing. I think there is a good variety of interests here. Lots of music and art is featured. It's really up to us all to post what will attract people. There will be an element of controversy, but it doesn't have to all be like that.