Rather happy to have scratched a long-standing itch into submission. I use the semantic-linkbacks plugin to display webmentions on one of my WordPress sites. It has an option for displaying webmentions as facepiles, which keeps things neat. But my WordPress theme also displays webmentions as comments, which is mostly redundant. Not entirely, though, because a few webmentions contain actual content, which is not visible in the facepile. I could completely void display of the webmentions, but that loses the little bit of content there.
Fortunately, the latest master of the plugin has settings to display the facepile for each kind of webmention, so I could stop it making facepiles for actual mentions. Then all I needed to do was hide the theme's display of any webmentions that are just likes or reposts. And that is easily done by adding
.p-like {
display: none;
}
.p-repost {
display: none;
}
to styles.css.
I'll probably have to revisit that if I ever get any other kinds of webmention, but for now I am content.