I don’t quite understand the question. Do you mean whether you should accept guest posts? Force others to write content for you against their will? It would be easier to answer your query if you could clarify what you want to know a little more.
Hi,
If you are asking about guest posting, then you can very well accept it from other bloggers. They can write quality content for your blog and enhance the viewership of your blog.
If talking about the guest posting then yes, you can let other people post on blog/website but make sure to create few “requirements” that will prevent the spamming.