The answer to “How should you @-mention someone you are replying to?”¹ can depend on many factors or a few. Context matters somewhat, sometimes.

We can simplify it to 2 questions, based on 1 directive:

* Elevate #IndieWeb domains, above any silo or @-@ identities

Two questions and answers:

1. Do they have an #IndieWeb domain? Then @-domain mention them², like you are speaking to them at their domain identity. This will notify them there, or at least reinforce their domain’s importance.

2. Was their post only published on a silo (or #fediverse instance), or was it POSSEd to a silo (or fediverse instance) and you plan to POSSE (or federate) your reply³? Then use their silo @-name (or @-@ address), in parentheses if (1). This will notify them on that silo (or instance), and may help thread your POSSE reply.


If the author has their own domain:

Reply to an IndieWeb post (& POSSE toot): https://tantek.com/2023/008/t1/
* @-domain (@-@)

Reply to an IndieWeb post (& POSSE tweet): https://tantek.com/2023/016/t1/
* @-domain [that matches their Twitter @-name]

Reply to a toot: https://tantek.com/2023/008/t4/
* @-domain (@-@)

Reply to a tweet: https://tantek.com/2023/002/t2/
* @-domain (Twitter @-name)

If the author does not have their own domain:

Reply to a toot: https://tantek.com/2023/002/t4/
* @-@

Reply to a tweet: none since this series, though it would be of the form:
* Twitter @-name

This is day 17 of #100DaysOfIndieWeb #100Days, again finished the next day.

← Day 16: https://tantek.com/2023/017/t1/socialweb-blogs-reply-comment-post
→ Day 18: https://tantek.com/2023/019/t5/reply-domain-above-address-and-silo

¹ https://tantek.com/2023/017/t1/socialweb-blogs-reply-comment-post
² https://tantek.com/2023/011/t1/indieweb-evolving-at-mention
³ https://tantek.com/2023/015/t1/publish-indieweb-decide-distribute

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