In fairness, I was once sitting behind a seat that I believe was broken as it reclined far more than the one next to it and really was right in my lap. (I’m short so no knees to stop it.
I just tapped the man on the shoulder and said ‘excuse me sir, if you get any closer I’m going to have to ask that you marry me’ 😁. His buddy laughed who was sitting next to him and the guy did bring it up to the normal recline level. In the end I thanked him, everyone got a good laugh and that was that.
Aside from that I think FAs are going to hate this ‘hack’ it’s no different than that little clip thing that was being sold for awhile that prevented reclining. I think that was eventually banned. Now, anytime a seat doesn’t recline it’s going to be the flight attendants looking for pringles cans and water bottles.