Do posts under my blog necessarily be in line with my niche?
I may have missed the discussion where this question was raised. My apologies for that - if that is the case.
For example, my niche is oranges, then I write loads of content under this niche 'Oranges' as shown above in the diagram.
Say, I decide to add the Heading Blog on the menu, can I write about anything I feel like that is not related to oranges?