I wonder if I publish an article on a website with a link for my site, and the link is included in a blockquote in that article, will this somehow influence the SEO of my site? I mean if there is no difference if the link is in a blockquote or not? Is it better for SEO to not include the link in the blockquote?
I have tried to place links in blockquote, bold, italic and with many other options, but i haven't seen any difference from one link to another. Google algorithm is very complicated, so maybe there is some difference in between your mentioned options, but I don't think that it will play major roll in your websites ranking.
I think there is no difference to put a link at blockquote or at signature. it refers to the site in the end.