I understand going abuse route to adjust and obtain GC as there's no other way to adjust.
If you still have to provide good faith marriage, why choose an abuse route for ROC? Why give extra point USCIS can scrutinize the case over?
Of course, you don't have to go through most abuse in the world to abuse waiver case approved. But there is word "extreme" in it for a reason, and it's open for interpretation.
For example, I wouldn't say name calling is extreme abuse, though it's abuse. I wouldn't say cutting access to finances is extreme abuse, though it's abuse. I wouldn't say most of controlling behavior is extreme abuse, though it's abuse.
I would classify the following things as clearly extreme abuse:
- Physical abuse / injuries
- Mental abuse (constant life or other threats, constant public humiliation, exploiting preexisting mental trauma)
- Pushing a person to commit suicide