Nobody sent a thank you letter to anyone. A person started a program that sent unsolicited spam. Sending spam is obnoxious. Sending it in an unregulated manner to whoever is obnoxious and shitty.

So you haven't seen the models (by direction of the Effective Altruists at AI Digest/Sage) slopping out poverty elimination proposals and spamming childcare groups, charities and NGOs with them then? Bullshit asymmetry principle and all that.

It actually is pretty bad, the person might read it and appreciate, only to realize moments later that it was a thoughtless machine sending him the letter rather than a real human being, which then robs them of the feeling and leaves in a worse spot than before reading the letter

It’s not a thank you letter. It’s AI slop.