I read a good article on how to switch the main blog of a multisite.
It enables you to make existing subsite become the main blog. (Here it is. It is also cited on several blogs).
That means posts on site.com/01/permalink/ will become site.com/blog/permalink/
What are the downsides of this action?
1) Does it impact SEO? Will google treat it like a new site?
2) Will facebook "like" count reset to zero after the change?
(It happened so in the past when redirecting from oldsite.com/permalink/ to newsite.com/01/permalink/ )
3) Is there any other challenge I need to consider?