Interestingly, it bugged some Friendica users enough that we introduced a user setting to add them to the post body even though they aren't required for the actual mentioning. They all are present in the ActivityPub message even when they don't appear in the message body.
Anyway this is a classic case of utility vs usage where body mentions used to be necessary in Twitter for actually mentioning people, and then they were moved to a separate field of the communication protocol but people still expect them in the message body.
Hypolite Petovan
•Interestingly, it bugged some Friendica users enough that we introduced a user setting to add them to the post body even though they aren't required for the actual mentioning. They all are present in the ActivityPub message even when they don't appear in the message body.
Anyway this is a classic case of utility vs usage where body mentions used to be necessary in Twitter for actually mentioning people, and then they were moved to a separate field of the communication protocol but people still expect them in the message body.