It should work if you post using a Lemmy account. However, if you use a Mastodon account it will show as “\#” which is not working as expected right now, someone has been opened an issue talking about it: https://github.com/LemmyNet/lemmy/issues/3789
Edit: After reading your comment again… oops, I think said too fast.
The situation above only applies when you try to post to Lemmy Communities, and also, I just tried it by myself, hashtag in Lemmy seems won’t work.
Usually, the hashtags in a Lemmy posts is a hyperlink, i.e. [#hashtag](https://example.com/tags/hashtag), for example this post posted by a Mastodon account:
I don’t know if hashtag (strings) works on Mastoson, because it might be processed (e.g. HTML character-escaped) when transmitting to another instance, and the testing community i posted is not federated with other instances.
Not for now, but it seems it’s coming, see feature request https://github.com/LemmyNet/lemmy/issues/317
Edit: If you need to add flairs now, just need to add a text with bracket before the title, like “[announcement] Post title”
That’s the method I use now, works nicely.
What if we use hashtags instead of brackets? Do hashtags in Lemmy post titles work correctly on Mastodon?
It should work if you post using a Lemmy account. However, if you use a Mastodon account it will show as “
\#” which is not working as expected right now, someone has been opened an issue talking about it: https://github.com/LemmyNet/lemmy/issues/3789Edit: After reading your comment again… oops, I think said too fast.
The situation above only applies when you try to post to Lemmy Communities, and also, I just tried it by myself, hashtag in Lemmy seems won’t work.
Testing-ground: https://lemm.ee/post/5513264
Usually, the hashtags in a Lemmy posts is a hyperlink, i.e.
[#hashtag](https://example.com/tags/hashtag), for example this post posted by a Mastodon account:https://lemmy.world/post/3754328
I don’t know if hashtag (strings) works on Mastoson, because it might be processed (e.g. HTML character-escaped) when transmitting to another instance, and the testing community i posted is not federated with other instances.