Yeah, you still can. The same issue affects watches, submission deletion (!), trouble tickets and probably journals.
I spent a couple of hours back in April detailing the CSRF issues and submitting potential solutions to the administrators (any one of which would probably have blocked an attack like this), and ultimately made a
public news post about it. It was never fixed.
For comparison, I told Starling about similar problems during the Inkbunny beta, and they were fixed sitewide in an update ten days later, along with a
bunch of other things. In fairness, I think that was his full-time job at the time, but they've had months to do some very simple fixes.
It still doesn't excuse screwing up everyone's comments. Financial transactions aside, actions like this just make it harder for responsible developers to work with the site. Eevee, as a developer you have a lot of power, but with great power comes great responsibility. Please don't do this sort of thing ever again.