Backlinks actually pass link juice. Like if your link is posted on digital forum and that particular page has pr 4 for instance it will pass its PR to your website. Thats what is called Link Juice but how much thats what only google knows
Very little help...not all blogs pass juice......if they are not relevant to your site...it could hurt.....
If you provide well-written, relevant comments that are clearly not spam, it will help your site by contributing to a natural-looking backlink profile and send Google a signal to index your site. Most blog comment links are no-follow, but that doesn't mean that they're useless.
Google like blog posting. Blog will be update everyday. If we get back links for blog, we can get good keyword ranking.
Hi, Blog commenting is helpful when you do it in a right way that is don't spam choose relevant catagory and quality site, content.