Question about getting backlinks from comments

You can use your links in your signature.

1) nothing wrong with having some branded and generic anchors
2)post on a site which allows it
Or
3) stop blog and comment spamming for links altogether.

Most of the links have no follow tags, so I don't think you will get back links.

Nofollows can still bring you traffic and they're part of a natural link profile

BTW, signature and post links on this forum are all nofollowed. And you won't even get a nofollow from a signature link here, because signatures are hidden from search bots (only visible to those who are logged in.)

Google can index no-follow links. Its always better to get no-follow links from high authority domains than getting do-follow links from junk sites.

Nofollowed links in general are not indexed by Google. They would only get indexed if they're followed on another page/site OR possibly if the URL is in your site map.
https://support.google.com/webmasters/answer/96569?hl=en

Other search engines may handle them differently.

Nofollows don't pass link juice either, but you could get TRAFFIC from a nofollowed link on an authority site. And it may count as a citation.

However you should have a healthy number of nofollowed links - having nothing but followed links to your site is like sending Google's spam team an email saying "Look! I built these myself!"

There are rarely any blogs who provide dofollow blog comment posting functionality. Generally, these days all blogs contain nofollow tags.

you can use anchor text in blog and forum comment but text should be different.