Yeah this is probly the 5th(?) time someone’s pointed it out, btwn this and the general thread. It’s specific to Firefox, so if you use Chrome or another browser, it should be fine. There’s already a bug report from last week (not to mention a related one from February)
Also if you open the review itself in a separate tab, the spoiler tags do work, oddly enough (of course by then it may be too late)