because you get pushed down quickly into 2nd page and beyond. when that happens, your link does not exist in the source of the tumblr article/page. so google bot will not see the link. on the other hand, we are supposed to backlink the backlinks. So when we backlink the tumblr article/page, it even confuses me. so you got niche keyword pointing to the page, and there is a new guy rebloging the page who happens to work on the same niche. what happens? google bot gives the link juice to the new guy? so the conclusion is tumblr blog reblog (for seo purpose) is worthless. am i right?