One problem with reviving an old blog is that the blogroll gets out of date. There are blogs on it that have been deleted, or some that haven't been posted on for 6, 7 or 8 years or more.
One great advantage of the Blogger Blogroll over the WordPress one, however, is that it lets you display the blogs in the order of most recent posts, so you don't go there, only to find that it's just stuff you've read already.
It's also possible to do some weeding out. Some people (like me!) have several blogs, and you find you have a link to one that is no longer being updated, so I've removed some of those and replaced them with the more active ones.
Having a blog on my blogroll doesn't mean that I endorse all the content, or any of it. I find it useful to read all kinds of things, even if I disagree with them. I find this a useful counter to the tendency of social media sites, like Facebook and Twitter, to reinforce confirmation bias. Twitter used to be better, when it showed you stuff posted by people you follow in chronological order. Now, however, it tends to give priority to people who have lots of followers who are liked by the people who like the things you like.Facebook has always done that, Those sites make choices for you about what you will see, but a blogroll lets me choose what I will see.
So I like to read blogs that express different views on various topics, some of which I agree with and some of which I don't. But do have a look at them -- chances are that if you find stuff you read on my blog interesting you might find some of them interesting too. Of course if you find my blog boring, you'll probably find those boring too, but you won't know till you've had a look.
