Originally Posted by Bilal Ahmad

Disadvantages

The only disadvantage of guest posting is that it need time. Writing for others will give you backlinks, but if you write for your own blog the you will get traffic for those articles.

Now it depends on you, that you want to write guest posts or write for your own blog.

Writing for others can't be a disadvantage. You get backlinks, different audiance (followers of the blog) and a lot of traffic.
--------------------------------------------------
Social Media Message Machine | Outsourcing SEO