Wasn't able to post yesterday due to being restricted and blocked by the HU server.
If anyone else is having this issue I suggest you contact the HU support team.
Here is the message they sent me:
Thanks for getting in touch with us!
I’m very sorry that you have been experiencing some issues with posting.
Due to the nature of our site, we can often be targeted by trolls and spammers. As a result of this, we have to employ an external spam filter to check through all posts prior to sharing. This usually working very effectively, but can sometimes be overaggressive with active new users and block them.
This was the case for your account. However, I have now overridden this filter and removed the block on your account. You should be able to post freely from now on.
Once again, I sincerely apologise for any inconvenience or confusion caused by this.
Please don’t hesitate to get in contact with me if you have any other queries.
So please get in touch if you need help in unblocking your account.