Almost two months ago [1] I modified my gopher server [2] to respond to HTTP (HyperText Transport Protocol) requests with “418 I'm a teapot [3]” and it appears to have worked! The gopher server is no longer receiving any HTTP requests.
I'm also glad that the movement to remove the 418 response code [4] failed. I don't find it useless, as it was probably odd enough that the authors of the agents making the inappropriate requests were forced to look into response and just skip my server entirely [5].
So yea!
[2] gopher://gopher.conman.org:70/1
[3] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/418