I wouldn't call people who just trade Steem on exchanges investors but rather traders. All they want to see is the chart of Steem; when the price is low they buy in for a few hundreds or thousands, when it spikes they sell. These people usually don't look at the technology behind the coin. However, if somebody really wants to invest big money into this then they will probably want to know more about it and they'll do their research. Why to buy big into a magazine which only shows ads? Is there even a point in placing ads in such a magazine?

Steemit today only works as a social media platform in small hidden niches. You only get good content in your feed if you hand-pick the accounts you follow. And it's getting less because the revenues are in decline due to SP delegations to bid-bots, thus many people are discouraged to continue using it regularly.