Just nod if you can hear me

Have you noticed when an article pops up in your feed about someone leaving a nasty note for a server in place of a tip that the handwriting usually looks similar? Are these stories just click-bait penned by the same person or is there something wrong with people that don't tip that shows up in their handwriting?

(Yes, I understand that tipping is largely a states thing because our servers are legally paid under the minimum wage.)