yarnd actually has WebMentions support. But generally this doesn’t work very well as in practise I actually find WebMentions isn’t something used a lot. It also has to be supported on the other wise in the first place, which a lot of feeds just aren’t going to bother with. However that is one of the advantages of using
yarnd, if someone does discover and @-mention you, your pod will be “pinged” and it’ll show up in your “Mentions” tab even if you don’t follow them.