can't reply to anything in the boards

I was trying to participate in the yorick q/a, but every time i try to reply to anything, it dissapears afterward. it acts as if I submitted it succesfully, showing my post with new and all, but if I reload the page it just vanishes as if it never happened. this happens instantly too, so I know that my comments arent being removed or anything. It happens whether I reply to a regular person, or a red. It happens whether I wait 10 minutes, or instantly refresh. This has never happened before.