Yeah, when you promote someone, tag him/her and share a quote from their work and a link to their post, you always can use #dcc.
Posting in the community is only for the contest. If you write about another topic and promote someone, you don't have to post only in our community, but in anyone you want.
I'll give it a try. Promoting is for #dcc members or?
You may promote anyone you like. And it's better to promote those who need support. For example in the contest, you have to find only those who didn't participate in the contest. Promoting their entries doesn't count.
But if you are promoting someone without entering the contest, you can promote even those who post in #dcc.
The goal is to spread this initiative to more new people. So, the most promoted ones will be rewarded.
How do I know they did not participate in the contest?
They didn't use #dcc tag. Only the tag of the topic. #hope in this week contest.