I agree, I go out once a week either Sunday or Saturday for two hours and clean up parts of the trails in and around my area.
Its amazing how much trash and litter is along the trails, I can get on average a extra large 140L clear bag filled in 2 hours and only walk about 30-50 meters.
Where I find the issues is though is not entirely with the bins themselves (though they can use improvement). The issue really is on waste collection, for example bins are always overflowing and whenever waste is collected most of the time what falls out during collection is left to blow away becoming litter. This litter is not collected by the city and instead falls to local residents to pick up.
Street garbage collection trucks and the large bin collection trucks, when collecting trash cause a good chunk of trash to become litter. I think this collection process needs a redesign to prevent waste from falling out.
What we need is bins like the ones shown bellow. These are fully sealed and underground. These should replace the large bins behind warehouses and plazas. The same should also be implemented in parks and along trails and sidewalks.