thanks for reply， I use iris, I now found it's OK to put a hashtag like #web3 in profile but hastag like #自由 does not work, seems do not support Chinese?
Discussion
Seems to be specific to iris. I am on #amethyst and could see my profile with intl hashtags.
If they are opensource I will make a pull request for them this week
I have created a pull request on Iris to fix this issue - https://github.com/irislib/iris-messenger/pull/395
Will keep you updated on its progress.
Thanks for using #nostr