[JustARandomGuy]

I've received thank you cards like this (I volunteer for certain well-regarded organizations). While the thank you card is very nice, the fake "handwritten" part is obvious - the strokes of the pen are a little too clean, too precise to be a human. A human tends to smudge some characters, or some characters will be squeezed in - the robotic handwriting never does that, so it's an obvious giveaway.

Don't get me wrong, receiving a personalized letter is very much appreciated and I appreciate it more because they put extra thought in it, but very few would think of it as actually handwritten by a human.

[Wistar]

Maybe something more along the lines of this AI handwriting generator?

https://www.cs.toronto.edu/~graves/handwriting.html

[lupire]

This stuff is terrible. I'm paying charities to do good work, no do deceptive marketing stunts.