I wondered about this too. I think the more useful reading is “I saw this” with the intention to let people (esp. those that might want to know) that you saw it. I have used such a signal with Slack before. It is cheap “costly” signal that can build rapport and mutual support or clarity about your followers.
I think “I have seen such elsewhere” might be independently useful but functions very differently and I would discourage that use or create a different react for that.
I wondered about this too. I think the more useful reading is “I saw this” with the intention to let people (esp. those that might want to know) that you saw it. I have used such a signal with Slack before. It is cheap “costly” signal that can build rapport and mutual support or clarity about your followers.
I think “I have seen such elsewhere” might be independently useful but functions very differently and I would discourage that use or create a different react for that.