I'm trying to post something to the *[Board & Card Games][1]* Stack Exchange site, and it looks like the server is returning [HTTP code 418, I'm a Teapot][2]:

[![Console with HTTP codes of 418 I'm a teapot][3]][3]

What's going on?

This is the content of my post:

```
Occasionally, a deck becomes famous which is a [colour combination][1] + a 'splash' of another colour.

One good example is 'Moist Jund', which is Jund (Black, Red and Green) plus a small amount of blue (which gives the Moist part of the name).

What are the names of the other splashes? That is, splashing for White, Black, Green and Red.
```

The only tag was [tag:magic-the-gathering].

When I go into the developer tools, and look at the preview to a response, I get this:

[![Suspicious request error page][4]][4]

  [1]: https://boardgames.stackexchange.com/tour
  [2]: https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/418
  [3]: https://i.sstatic.net/TGAwu.png
  [4]: https://i.sstatic.net/KZ70u.png