I have a better suggestion, which will save time, energy, money, and human work.
Don't.
Write it yourself. If you can't, don't post.
Just using your browser's built-in proofreader is enough in 99.9% of the cases.
Using ChatGPT to rewrite your ideas will make them feel formulaic (LLMs have a style and people exposed to them will spot it instantly, like a code smell) and usually needlessly verbose.
Really - your comment on its own is good enough without the LLM. (And if you find an error, you can always edit!)
If we really wanted ChatGPT’s input on a topic (or a rewording of your comment), we can always ask ChatGPT ourselves.
You’d assume people would use tools to deliver a better and well composed message; whereas most people try to use LLMs to decompress their text into an inefficient representation. Why this is I have no idea, but I’d rather have the raw unfiltered thought from a fellow human rather than someone trying to sound fancy and important.
Not to say I still find the 20% claim a little suspect.
