Originally Posted by isteve

Yes, everyone can post on everyone's community. A community is not something you own... it is a sub-set of a niche or brand or subject.

When you create one, you moderate it. However, very soon, it will be possible to get kicked out of your own channel if people really doesn't like your moderator work.

So, don't spam into your communty, it is not like a facebook page. It is more like a subreddit

When you start a community, you need to moderate it... so you need to remove the spam you get in it and keep the good links.

Hope you like the system