Good point. I agree, especially with the fact that we have to make the community aware that as long as they're upvoting spam posts, the number of them will increase. We definitely need to stop that, because in the end it might lead to established Steemians taking their high-quality content somewhere else.

When you say

The platform significantly increases in value every time a new engaged user joins.

I disagree. Steemit is promoted to the outside world like a place where you can earn easy money. It's getting more popular every day. The day before yesterday, no less than 20.000 new accounts were created. How many of them do you think are gonna last? This wrong image of SteemIt that is presented to the world outside is partially responsible for the number of shallow posts that is overtaking the tag streams.

For a post I wrote earlier, I created this mockup of an ad you see regularly:

Of course, that's not the right way to promote SteemIt either, but it's closer to reality than the original one.

I noticed a lot of new users are signing up for SteemIt and do exactly what they're told to do: post, upvote, comment. They don't know that in order to make some money and to become part of the community, there's a quality requirement. I've talked to several people, and they plead guilty. They didn't know any better, until someone took to the time to educate them.

I submitted a post to Utopian yesterday, suggesting to make new users read the FAQ page before they can start posting. You can read it here if you're interested. My suggested solution is not ideal, but at least it might make some new users aware that it takes hard work, dedication and patience to get somewhere on SteemIt.