The problem had gotten worse and worse to the point that it was almost unuseable and somehow before I bought my new monitor I never found this thread. Bought a new monitor and brought this one into the shop thinking I'd take it apart and give it a shot no matter what
Getting the bezel apart is by far the hardest part. You've got to make sure to pry it open starting where there isn't a clip then move slowly around the monitor. This took the most time as I wanted to be sure not to break any cables. After that the rest of the repair was relatively easy. I cleaned the connector (M and F ends) with contact cleaner and q-tips. Then I used the iFixit screwdriver with the smallest flat head to srub (LIGHTLY) the tops and all sides of the pins. I think that is what really cleaned them off because the shiny metal started to show.
I would scrub the pins with something. I'm sure there is a better way than a flat head screw driver. Be careful taking off the bezel but, don't be afraid to use a bit of force. Only when you have it almost all the way off do you want to be extra careful not to break a cable