Strange "Mentions" behavior

Stream: Zulip meta

[Ching-Tsun Chou]

The following item appeared in my "Mentions":

image.png

But as you can easily check:

#Carleson > Paper writing tasks

My name is nowhere mentioned in that whole thread.

[Julian Berman]

@topic mentions the topic, @channel mentions all subscribed users to the channel. Presumably you are subscribed to #Carleson?

[Julian Berman]

https://zulip.com/help/mention-a-user-or-group has details

[Ching-Tsun Chou]

Ah, I see. Thanks!