For programming related content it would be nice if this worked as e.g. npm adopted @ in package names.
The reason this likely fails, is due to the
@ being at the beginning of the word, thus it matches the username selector and is trying to find a user with that username and any topics/posts associated to that unknown user.
I guess if it fails to find a username, it could treat it as a regular string and not a filter… (seems like a feature request)
I think you are right, searching for “ionic-hello-world@” finds strings with @: