Is blog commenting still useful in 2020?

absolutely not

Yes, Blog Commenting is still effective and valuable as long as you’re doing it in the right way and with the right goals. It is an excellent method to exchange ideas, thoughts about what people feel for a particular topic or a blog post. Blog commenting helps you in many ways, these are:

1. It helps in getting leads.
2. The more the conversation, the better will be your popularity.
3. One of the most important reasons to do blog commenting is to get backlinks.
4. Any person who is commenting on the blog will leave a backlink, which leads to more traffic.

It's like a hammer. You can use it to break walls or to pin nails. Use it wise.