I recently had coffee with a headhunter. He highlighted that he earns a commission based on the salary of candidates he placed and then he bluntly said "I'm sure you will have applied for positions at various places. If your record is sitting in some system and I reach out to that employer, they will avoid you altogether to avoid confusion and I certainly won't earn a commission. So as not to waste everyone's time, you will need to let me know where you have applied for any positions previously."
Is this really accurate? I don't feel comfortable at all divulging everything I've done.