Those quotes have been replaced with the Villa Park Pictures. I parked with a mate by the old HP Sauce factory and walked to the Witton Arms to meet other friends. As you say there is still litter all over the place.
I know it is not upto Villa to clean up the streets beyond a certain point but I like your idea. Maybe the club could speak with locals and get fans and locals to volunteer on a mass clean up. Give tickets away or something as a reward. I think people see a mess and just add to it but if it was clean would think twice.
Bins like you say are few and far between and if you do find one it's full!
These owners seem to want to know things so maybe something to bring up at the next meeting with fan groups.