In high school I had the TI-89 Titanium. Like everyone here, I got into programming it using some USB adapter I could attach to my iMac G5 and the TI Connect app[0].

One day, vexed by something, I vented my frustration by composing a profanity-laced rant into the Feedback window of the TI Connect app. (I don't recall the proximate cause, but I remember complaining that the product itself, which is still $110 today, is a total ripoff.)

I was certainly surprised when the (sole?) TI Connect developer responded by e-mail taking umbrage at my complaints.

0: https://education.ti.com/en/products/computer-software/ti-co...