Yes, using discourse.example.com is perfectly valid.
The point of contention is, could a reasonable person look at this and confuse it with what we do at www.discourse.org? Certainly not true if you are merely picking the URL discourse.example.com.
Yes, using discourse.example.com is perfectly valid.
The point of contention is, could a reasonable person look at this and confuse it with what we do at www.discourse.org? Certainly not true if you are merely picking the URL discourse.example.com.