LinkedIn has thousands of discussion Groups, where actual discussion seems to be minimal. There was a time when a given topic had one or two groups, but now a popular topic will have hundreds of identical competitors. Anyone can create their own groups. Numerous small businesses (and some larger ones) have done this.
Why do people create LinkedIn Groups?
Most people in the workforce know that the Internet is a cheap way of reaching out to millions of people. At one extreme is the pastime of spamming those millions, but that’s the province of shady folks who go to great lengths to remain anonymous. At the respectable end, known as marketing, you need a large list of contacts, so you can promote your messages, being the owner of a discussion group.
So you create a LinkedIn group and call it, say, Internet Marketing, or E-Commerce, or Marketing Communications and so on. It doesn’t matter if someone else has a group with a similar name, but it cannot contain “LinkedIn”. If you’re into SEO, you have only 3143 other groups that appear to cover that topic.