I have had my top loading HE low agitator machine for 4 years and have the same problem. We had GE come out and they took the agitator etc out and cleaned it.They said the lint builds up and must use AFFRESH tablets to clean it about once a month. I have found it not to be effective. I have even used it as much at every 2 weeks. I have done so much research and the solutions to try were to use the right amount of detergent, I add vinegar to the dispenser, and lately added baking soda after loading clothes. The vinegar should help to clean the inside.I am fed up too. I want my old 27 year old washer back. As far as what to do with the lint guk on clothes? I've used fels naphta soap bar on the actual marks. It works but is very time consuming. Lately I just wash the items again. Sometimes it takes 2-3 washes! So much for saving water, electricity, and wear and tear on the clothes. I've called GE and they said don't overload, sort between lint and non lint clothes. I've even gone so far as turning all the clothes inside out!
I,m sorry. I've probably discouraged you some more, but at least you know you're not the only one. Let me know it you come up with a solution.