Typically they're written with an `@` prefix, which implies that it may be a handle that supports WebFinger: https://en.wikipedia.org/wiki/WebFinger https://en.

Typically they're written with an `@` prefix, which implies that it may be a handle that supports WebFinger: https://en.wikipedia.org/wiki/WebFinger https://en.wikipedia.org/wiki/WebFinger WebFinger technially uses a `acct:` URI protocol scheme, but this wouldn't work here. Lemmy writes community refs with a `!` prefix, which is somewhat unusual.