Ok, I know this is boring to most folks, but as a geocacher we have regular meets, some only for a few hours and some lasting for days or more, these are called CITO events. CITO stands for Cache In Trash Out.
I mention this because, as wilders, one of the most common things I see people mention is the mess/rubbish/litter that they come across. There are a few places I visit on a regular basis and when stopping over the first thing I do is walk around and locate any crap left lying around (usually while the kettle is boiling and dog is stretching her legs) ... after tea, I get my litter picker and bin out and collect everything in sight. On the odd occasion when someone drops litter in my view while I am there, I pointedly walk over with my litter picker and pick it up. In fact, this summer, I (unusually for me) stuck me neck out when a family with Glasgow accents turned up and one young lad of around 4 years old started throwing crisp packets off the side of the pier to watch them blowing in the wind. Both adults seemed completely oblivious of this, though they were watching him doing it. Eventually the opportunity arose where they started to pack up but dad(?) stepped out of the car and leaned on the barrier to light up his fag and I jumped at the opportunity to grab my rubbish bag and litter picker. I chatted to him for a few minutes and asked if they were getting ready to leave?
He said yep that it had been a nice day but they were heading north blah blah blah ... I replied, OK, I guess it's safe to go and pick up the rubbish the lad tossed out then so I don't have to climb down the rocks a second time as I wouldn't like locals to think I left it there.
He took the hint and climbed down and got it himself, the lad even got a telling off!
So, to surmise, why not try to introduce a WITO event or two each year?
WITO being an acronym for Wild In Trash Out. If there was a banner or two (or even an ad in a local paper inviting people to join us) helping to bring it to the attention of locals it may well help improve the general public's opinion of Wilders.