Recently, I often come across strange operators of two genres when I call CQ.
The first is those who send "?" as soon as I finish calling CQ. It might mean they could not get my call, so that they want me to repeat my call. Or do they want to know if I am calling CQ. Unfortunately, even if I call CQ again, they always won't give me a call. They should listen to me patiently until I repeat CQ. Their "?" could disturb me copying the others' weak signal on the background. I often ask those what "?" means etc. But I never get any replies from them. I am afraid they have too much "?" in their brain and may need consultation to a shrink head doctor.
The other genre is those who start a QSO before I reply to them. This kind of busters is not proliferating so much yet. However, I have never encountered those for my experience on the radio for over half a century. He/she always courteously begins a QSO in ordinary manner. When I am psychologically ready to do with such people, I am courteous enough to reply him/her as if there was nothing unusual going on. I am inclined, however, not to answer those operators. Because starting a QSO in this manner may convince them that this style is valid. It could disturb the CQ caller's activity.
I know those won't bear evil will toward me. They still commit mistakes and disturb the normal formality in CW operation. It won't be my intention to hurt them but I won't reply to them at all for now.