Almost universal rule among experienced DXers on the core bands: Let DX call CQ DX.
What's that even mean? Everybody from a given country is DX to somebody in another country. Do you mean to say, only answer CQDX and never call it? How would that even work? Does this advice only apply to Americans?
Applies to most Americans and perhaps Canadians. I have no problem with a station in North Dakota or such handing out rare Qs.
There are so many of us and we need to be good citizens of the international hobby. That's especially true on a band like 60 where there is only one international channel. Or 75 when the DX window was 10 KHz wide. Even on 20 SSB there are only a few standard DX frequencies for DXpeditions.
Another problem with calling CQ DX... it's so damn inefficient if your goal is working new countries. Like North Korea is really going to reply to my CQ.