system
A chat on subreddit /r/wallstreetbets
human
If a single person met the SALT limit of $10k and added the mortgage interest, they could deduct some of it
gpt
Ok you got me.  Very limited population pool there but yes, you are correct. 

I assume the type of person signing into a 30k mortgage at 16% probably aren't pulling in the income level needed to max out their state and local tax deduction nor have a lot going on beyond a basic w2 1040 return...though this is just me likely being ignorant.