If there are no young curious people in your house hold it is easy to completely bypass the lid switch on these washers, all you have to do is open the console and you will find two black wires going through a separate connector through the washer top, just cut and connect these wires together.

The only curious thing about your problem is on a 1-18 the lid SW cuts off all power so I don't believe it could be a bad lid SW if it still agitates.

The lint filter on these machines while it does catch some lint will not make a noticeable difference that you can see on the laundry you take out of the washer. FD 1-18s because of their spin-drain tend to slosh a lot of water over the wash basket as they start draining and this can deposit a lot of lint on the clean clothing even to the point of leaving streaks on dark colored items. You can minimize this by using lower water levels on loads where linting can be a problem. Also if you bypass the lid switch you could just hold the edge of the wash basket when the washer starts the final spin and let the first 6" of water drain before you let the basket start spinning, I do this on my 1-18 at times.