Matrix room aliases are not tags

[notramo]

Matrix room addresses start with a #, like #ipfs:matrix.org
When a Matrix room address is included in the text, its first part (the room name, without the server address) is incorrectly converted to a hashtag.
It should be converted to a https://matrix.to link, so when I write #ipfs:matrix.org, it should be converted to [#ipfs:matrix.org](https://matrix.to/#/#ipfs:matrix.org).

[rkingett]

Maybe to fix this, we should have an edit box for tags and another edit box for categories beneath the post textarea.

[notramo]

No. If the tag is followed by a :, then it is a Matrix room alias, otherwise it is a tag. Matrix rooms are not like IRC rooms. Matrix is decentralized, so a room alias always has a server name in it, after the :.
So, the following text would resolve to a hashtag:

You can download Arch Linux packages from #ipfs too, more info here

But this would resolve to a Matrix room alias:

You can ask questions regarding IPFS in #ipfs:matrix.org