The exclamation point format is this:
[!communityname@instance.name](/c/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.
This article also misses the point somewhat.
It has a similar issue as attempts to respond to criticisms of Mastodon (or other federated software), the people criticizing it and in this situation Bluesky, are clearly criticizing them as social media and don't care about the technical foundations. They do not care if there's other software using the protocol, and other apps to interact with the protocol to filter out what they don't like.
If they cared enough, they might seek out that other software or those other apps, but either in what they're saying or doing (e.g. returning to Twitter/X or switching over to group chats or something else instead), they indicate they don't.
The real response to people's disinterest or distaste for a social media platform isn't anything easy to provide. Some of it can be moderation, clearer guidance around the interface to tailor your experience, more outreach to bring in a greater variety of conversation, and so on. However not much of it can be addressed by the underlying technology, because the vibes of social media are produced by the people there, and no amount of tech can ethically address that.
In the meantime, block and mute at will and stick to feeds you know you'll enjoy to better avoid the worst that may emerge from the net.