Thoughts
I'm going to start intentionally avoiding "I think" in favor of explicitly disclaiming lack of confidence versus opinion. It's easy to fall
into the habit of using "I think" because you don't want to see overconfident or because you're expressing an opinion, and I still want to disclaim when something is an opinion or when I'm not very confident, but "I think" is a vague and poor way of doing that.
It's a hedge. And I believe hedging is important, but "I think" isn't a good hedge.