Dont do anything just let them display naturally over time, it will look more natural than your site instantly showing up with 1000's of backlinks and it will sure be alot less work, by letting things happen naturally.
If by putting the profile links on a blog, does google spider the POST of the links or do we put the links in the COMMENT section to get indexed?
you put the links on the blogs page, as if it was an article.
But i am sceptical because if GG only see links on the page (hundreds/thousands links), not sure they index them as they index content