It’s not uncommon for organizations to have strict policies regarding the use of GPLed code, due to the somewhat viral nature of this license.

Nevertheless I was a bit taken aback when I discovered this sign at the entrance to our garage:

GPL Prohibited?

Moreover, the prohibition sign to the right contains a figure that resembles a hacker wearing a hat!

Microsoft-sponsored conspiracy, or misunderstanding?

Hint: I’m currently working in a French-speaking region.