Slight weirdness on one thread

I am not the OP of the Cultural Patriotism thread, but every time someone posts on it, the blue number icon appears over my avatar and its drop-down menu indicates a “reply” to me. But no one’s actually replying to me, they’re replying to the OP. Tried clearing the cache, tried signing out and in, no change. Any ideas?

Did you set the bottom button to Watch?

Yes! Thank you. Fixed. Whew.