I'm confused: You haven't been on DT1 since August, so I assumed you had requested to removed from consideration as well. Am I wrong?
You're wrong

I didn't request to be removed, but lost the random DT1 selection
in August, and lost it again ever since.
It's just my luck:
Make that 4 months

I checked, and you definitely were eligible for at least the last 2 shuffles. (I didn't check further back.) It is very unlucky: looks like about a 0.4% chance to get skipped 4 months in a row.
I'm pretty sure theymos would have mentioned it if he blacklisted me. But then again:
I'd like to see the "provably fair" details for this lottery.