THe problem is 3710 or so will be vacant, we'll have a QSO there, then these idiots just start right up on top with no ID, no request, etc. This seems to happen every time someone happens to use "their" frequency. I have heard them go for hours with no voice ID. They are, in my experience, some of the most arrogant and selfish group of knotheads (as Steve said) I've had the displeasure to encounter on ham radio.
Sounds like a very different group from the 40 meter bunch that does a voice ID before every digital transmission and has a very pleasant demeanor. Some DSSTV stations do a visible text ID in the waterfall, but since they are in the voice portion of the band I don't think that cuts it. At any rate, your description of the 3710 group indicates unwelcome moronic behavior in an area of the band that has generally been a peaceful place to chat. From experience I can tell you that it doesn't take much to make make a mess of that mode as the SNR needs to be quite high for error-free transmissions. With that in mind I would imagine they would be motivated to not snuggle up too close to a strapping and well-filled out AM signal. Time will tell I suppose!
73,
Rob W1AEX