In the Getting Started page on how to orgainize issues sources, it mentioned
"If you plan to use a custom hierarchy such as initiatives we recommend you create a separate project and store those issues independently. In that project configure the issue types and, if you do not already have one, create an issue type for your custom hierarchy issue type. If you’re not using a custom hierarchy, you can skip to step 3."
Are there any solid reasons to use a separate project to track Initiatives independently? Are there any drawbacks to have one single project to manage all issue types including Initiatives? What are the pros and cons?
Thanks in advance.