Back in the day TF and CS and other goldsrc and source games allowed custom sprays: square textures you could decal onto a surface and share with the server. M

Back in the day TF and CS and other goldsrc and source games allowed custom sprays: square textures you could decal onto a surface and share with the server. Most of the time it was benign or hilarious, but enough of the time it was pornography or gore that Valve disabled that feature on its managed servers.