Sadly Mate, I don't think pictures of what discarded tackle has done will deter some, as the notices prohibiting fires are ignored.
The nearest car parking area to the park lake near me is sometimes used as a 'fly tip point'.
Some of the anglers who fish there really don't care about other animals, dogs etc. Just before the end of March I walked round with Sky, and found a pike trace and trebles just dumped on the ground. It is not the first.
I have put fires on the bank out myself, then wished I had called the fire brigade, just to draw attention to it. If the fire brigade keep getting called out then they might put pressure on the council.
In all the times I have walked round Chantry Park, I have only seen two park rangers this year. They are spread too thin, no on-site full time staff.
15 years ago a ranger went round every day emptying the bins and clearing litter with a trailer on his quad bike!
I keep on emailing the council with pictures of the litter, of overflowing bins, so maybe it was that pressure that got those rangers down there, but I haven't seen them since, and I do walk Sky around there frequently, and I still email the council with pictures and information when the bins are full.