The exclamation point format is this:

!communityname@instance.name

As an example, mentions should look like these:

!newcommunities@lemmy.world
!communitypromo@lemmy.ca

This is especially relevant when promoting a new community in the aforementioned communities, as otherwise it’s less convenient to visit and join your community. A standard link would take someone off-site to whichever site the community’s on, instead of its copy on their home site.

Forgot to include this key point as I was writing and revising all this:
Include these mentions in your post bodies! Having it in the title of the post alone doesn’t help, as it doesn’t create any link to click or tap through.

p.s. when typing these mentions, the WebUI will try to provide suggestions to autocomplete, select the right one and it should do the trick. App interfaces will vary but should provide some method to do similar in their post/comment editors, either try typing the mention or looking for an exclamation point in the editor and following what the interface offers to help.

6 points

You didn’t need the full markup. Just typing it out should do it automatically, no?

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4 points

I usually use the autocomplete suggestions from the Web UI which creates the markdown links.

I know it doesn’t work for Mbin for instance, but I’m not going to manually type !yepowertrippinbastards@lemmy.dbzer0.com every time

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5 points

I wish the ui’s had a quick copy option of this format in the community sidebars.

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2 points

It does? I remember using the autocomplete for sidebars

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2 points

I usually let the auto complete finish and then delete the excess markdown

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1 point

I use too many links to do that every time. I’ll just do it on !communitypromo@lemmy.ca

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3 points
*

It should yeah, I had initially written that but dropped it during revision & put it back in the p.s. at the end. Part of the reason I dropped it I think is that it Depends™ on what you’re posting from, browser/WebUI or app.

Browser/WebUI, yes. App…Maybe, each seems to handle community mentions a little differently.

Edit:
For clarity I had meant the autocomplete of the mention link, not the resulting mention.

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3 points

Does this work for you? I’m just typing it bare in my app (sync) !nowhereelsetoshare@sh.itjust.works

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4 points

Works fine in Jerboa.

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4 points

Works fine in Voyager.

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3 points

Yeah, it worked! Really it’s just a matter of being unable to account for how each app interface handles things that was tripping me up. Some may offer suggestions to autocomplete, others not so much.

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3 points

Works fine in Connect.

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3 points

Works fine in Eternity.

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3 points

Works fine in Summit.

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3 points

Works fine in Boost.

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3 points

Works fine in Sync.

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2 points

Works fine in Thunder.

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1 point
Deleted by creator
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1 point
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If it isn’t working on some app/frontend then that’s a bug.

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2 points
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!test@programming.dev

Edit: Yes, you don’t need a real link.

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5 points

The markdown is kinda obsolete, the plain text generally works better I think

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