That would be great if every week every dapps has a good content selection contest, so dapp users don't just use dapp on a daily basis, but are motivated to create good content and also have to promote the dapp used to post the Dapp Content.
For example, @tasteem has a weekly contest, but still vote every post that uses Tasteem.
I am waiting for the other contests so the Steem Blockchain still has "the spirit of competing for the better".
Or with regular weekly task, @oracle-d will be held to promote Steem to social media.
For the delegation contest, @nathanmars has invited many other Steemians to make Tweets about Steem and reward the SP delegation. (So far it has gone well, but more participants need to create the effect of greater public awareness of Steem.)
@theycallmedan also has a brilliant way to arouse the spirit of the Steemians. Every week, he will give the opportunity to Steemian through Steemit and Twitter, so that Steemian gives a posting link, and Dan will vote those content. The Steem Blockchain needs more support as Dan did.
Btw, thanks for you @kus-knee about routinely held contest. :)