Ultimately, you will have a mixture.
There will be many who come on here and spew all that is going on in their lives including when the dog crapped on the floor. Then others will have serious aspirations in terms of the content created.
Personally, I am not into creating Memes or really even seeing them...but DMania is a big application for many.
And as we saw with the cryptokitties and pokeman games, sometimes what we would consider a bit dopey takes off and is embraced by the masses.
Personally, from a STEEM holder perspective, I hope there is our version of cryptokitty on here with it generating millions of transactions a day....as silly as it might be, it is good business for STEEM holders.
Oh, don't get me wrong! I'm ok with any kind of content which has a genuine consumer. Hopefully with the communities we will be able to disseminate better what type of content we want to see.
What I'm not ok with is someone mimicking content creation of any type and which has no audience just so he or she can collect rewards. That plus the usual spam, but I believe that can be overlooked easier, if it isn't overwhelming.