[readthenotes1]

Perplexity did this to your response. I'm not sure that correcting grammar and changing one word makes it sound wooden.

"I understand this if you’re not a native speaker, but if you are, it will generally make you sound a bit unnatural."

[ShroudedNight]

"I think" is explicitly disclaiming authority. Omitting it changes the social signaling of the response significantly.

Switching "wooden" for "a bit unnatural" also does a disservice: "wooden" describes a specific quality of deviance.

Over-all, I would definitely consider the revision stiffer and more reserved than the original.

[WD-42]

“Wooden” is much richer and unique than “a bit unnatural” so yes the ai version does sound more like a robot.