For example, I personally don't find the word sucker or the poop emoji offensive enough to get flagged. Maybe I'm missing context? With this tool, I don't get a chance to learn about my inappropriate words/emojis.

Also another feature I would like to see are suggestions on what phrase or word is better.

For example, when talking about blacklists and whitelists, you could suggest using the words denylist and allowlist as alternatives. Or when you write "the food tastes like (poop emoji)" it could suggest, "I disagree with the taste of the food".

nit: you mentioned you built this tool in a month but the copyright reads "2020-2022".

That's the problem.

Sometimes people don't even realize it is offensive. When I moved to the US, I (and some of my friends primarily with Russian background) freaked out about everyone asking "How was your weekend?". In the US it's considered quite neutral, but it's almost violation of privacy for any almost every person back in my country.

So, yea, "sucker" is probably offensive to some folks, even if you don't think so.

A poop emoji is now ‘hate speech’? Perhaps, saying ‘Mastercard’ or ‘golden master’ is also possibly hate due to the use of ‘master’ offending someone. Maybe sarcasm is now hate right?

I think this tool is going down a route that is looking to create more problems than actually solve any with a risk of backfiring. Good luck with where you take this tool.