I'm in Frederick MD we have a group admin for the area. I'm going to ask them if they've allowed the trails to be posted. They're rated double black so it might be a good thing.Whats your home area? Check and see if your region/area has an admin group or person in that role. If not, click that apply button and try to get in there. Even if someone adds a trail, it needs to be voted on and reach a score of 5, or have an admin approve it. So you can technically get in there and downvote some, if you see it.
I got in as the admin of the entire province of Ontario and do quite a lot of filtering of trails that should be private or not added at all. I'd like to think that I have a pretty good insight of the general happenings in Ontario, though its an absolutely huge region and has almost 10000 trails in there, so I always try and find out who the trail builder and ask them for their input, if new additions seem bogus.
What I think a lot of people just don't realize, is how public the info is and its no longer a small community of users. There are trail organizations and even government entities that are using it for their maps and reporting. That also means that some of those people from the government or other official organizations can see everything in their region - which is why some stuff shouldn't be added at all. Keep that stuff off any map, private or not.
A good example is this trail - https://www.trailforks.com/trails/downrange/ . I messaged this kid (have sold him some bike parts too) after he added the trail and told him its probably not a good idea to add it - nope he said approve it or whatever. So I did and guess what, literally the next day the town came in and plowed down the work he did.