Please be advised that people use this for routing using OSRM to test for better accessibility. We are building a better solution, but it will take time. I hope we can keep them in the short term until we find a better way to host these informations. I've seen notes like this and even a lot of more personal one that doesn't add any useful information that were kept and didn't bother people. I don't see why ours are creating problems, since they are not rendered on tiles anyway. however, if you decide to delete them all, I will acept your decision without any complaint. However, some researchers and official will have their scripts fail.