How Not to Join a Google+ Community Discussion

I think that the Communities on Google+ are great, as they allow people with a common interest to join and exchange information related to that common interest.  Unfortunately, some real estate agents still consider ANY venue an advertising billboard.  I started a community about Small Business Technology at Google+.  Since I do have a lot of contacts in the real estate industry, it's a given that there will be a number of them who will join this community.  However, it's a place where people with an interest in using technology in their business come to exchange information.  It is NOT a place to join and immediately place a real estate advertisement, as this:

Preparing your home to be sold - XGBook Articles »

 

Do you wish to make a good impression on those who want to take a look at your house before you sell it? Do you wish to get a top dollar while being able to sell your house fast? Then, you would need ...

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The link was to a poorly written article like so many written for article sites out there, and as the moderator of this community I took action; this person is now banned and the post removed.  It's off-topic for the community and it's not the way to begin a conversation.  I would equate it to walking up to me at a technology convention and reading the text of this article to me aloud.  You wouldn't do that, so why would you do it this way?  Simply because a venue exists, it doesn't make it a place for advertising, especially advertising totally unrelated to the reason the venue exists.