I have an issue trying to use it on Firefox mobile - android. When the keyboard opens the layout shifts and mangles the text box. Then, writing is more difficult.
> (Otherwise why would lead banks spent billions and billions for IT development every year? What tangible difference you see in their website/services?)
Well, I don't think all those people are spending their time making simple calculators.
My guess is that s/he does not write in English good enough, and prefer to use AI to "enhance" the text. My recommendation to the OP is to post the original text in Japanese with a direct autotranslation. (Or just the autotranslation.) It will look more authentic.
[Hi from Argentina! Expect to see some weird errors in my comments. I try to avoid them, but they slip.]
Valuable insight /s
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