You can already do that by looking at the thread titles and seeing which ones have a number of posts.
A thread that has been up for an hour and has one post is likely not popular or controversial.
One that has been up for five minutes and has nine posts probably is.
But why would you care anyway? Read what interests you.
Yeah, I’m good with just seeing the number of posts as well. It wasn’t my issue. Thanks. I just want to freep easier on a phone.