“It's redundant to say "I think" at any point in an opinion piece.”

“But is there still value in human produced writing? Subjectively, yes. Objectively? I'm not sure. I think there's a lot of personal value in writing though.”

There is value because I felt compelled to engage, but if it turns out you’re a bot then I’ll feel cheated and less likely to read other blog posts.

I think it is not redundant - it gives emphasis for a guess, to make sure reader won't mix it up with other things that may be verified to be truthy.