You have my sympathy, having had unknown legal action pending over me is a heavy burden to bear. I suffered this big time on several fronts, maybe they were connected, I will never know. I my case I had really done work that was uniquely my own intellectual property and I had people blatantly copying my product. Around the same time a worthy bird protection group prosecuted me for infringement of wildlife protection law. Because my style of making cases for a popular product in pub decor, which I had invented, was being copied. There were those, who thought that they could cash in, by also making the displays that I was designing and manufacturing and at the same time report me to the protectionists, because I had triggered of work that appeared similar.
Pick the bones out of that; my advice is go carefully but do not give in. There are many villains about, some that the majority will see as whiter than white. Eventually I won my way through the court processes, and followed up by going around my customers, who were buying the copies of my product off my competition, by telling them that all the new designs would be coming from my workshop. So if they want the dog and not the tail, they know where to place their orders, it worked
Unfortunately the sad side is I suffered PTS, courtesy of a charity with a Royal proxy, withdrew from a more aggressive marketing strategies and the techniques I developed will probably die with me and not be passed onto other crafts people, who might be able to use them in new ventures.
Back to walking; The only written routes that I would merit with unique intellectual content must be pre-1949, because all others are gleaned from the OS via the definitive map, so surely the only additional content is the actual prose that is written. Open access must surely be open source, anyone is free to see a route and say follow me.
Beware of the 'holier that thou brigade'. They rarely believe in the good they are supposed to be doing, more out for the kudos they can pick up along the way.