Frank, great that webmentions are now working on your site. And fun to be witness to that on the train. But all your postings now also have themselves as a mention in the comments! Do you have an explanation for why that happens? Maybe you need to filter your own post’s url from the list of detected urls you attempt to send a mention to? I have my site set to filter out self-references per post, but not to other postings on my site (so I can ‘mention’ myself and weave a web of connected thought).