lol
I remember doing a high volume program that had me deadlifting twice per week for 2 weeks and then once during the 3rd week, then repeat. I was fine with that and didn't get burned out until I was strong enough to be doing 8-11 reps with 405+, and that is when I remember where all of a sudden it was very hard to deadlift twice per week. At a max of 495+ for 8-11 reps (heavier weight for lighter reps) there was no way I could deadlift more than once per week without getting burned out. I've been a "once per week" dead lifter for a long time now. Just no other way I can do it. I can't even fathom three times per week, I've never done that.
Edit: That's when I was working to failure all the time, but even on HST I get burned out if I deadlift more than once per week. I can squat twice per week just fine, but deadlifting kills me. Don't know why. I think it's because I'm closer to my 'genetic limit' on deadlifts than I am on squats, but am not sure.