"people tell me they can’t stand subtitles because it “reveals” what they’re going to say before they say it."

I love watching movies in the original language, but this is something I hate as well, but something that can be avoided.

Some movies get it right, though. The timing, just the words that are spoken and even different colors for different persons speaking (very rare, cannot even remember where I have seen it). That should be standard, but with most movies you can be lucky if the subs even match the plot and do not reveal too much.