EDU Backlinks are NOT a panacea for a shitty blog!
Obsessing over backlinks will get you two things: first, let me clue you in that a lot of edu sites have already been spammed by backlink brokers peddling their wares on fiverr and other services.
(1) These edu sites will ban your IP and/or your blog (some are already “setting out the net” to catch you)
(2)You will raise Google’s attention – they now have a “team” (like an NCIS?) investigating blogger’s attempts to game SEO – that’s why a lot of backlinks services and the blogs they serve have been DELISTED on Google (and it is spilling over to BING) … which is the LAST thing you want!