Something is wrong with your platform now? I tried multiple refreshes and some parts of the page is broken like my profile picture, I can't even see my user ID.
Or maybe I just missed where I can see my user ID?

No worries, I have the same since I registered actually. In fact, I never even got the user ID until now for some reason. I checked several times but never saw it, always the same message as your's. Not sure if we actually need the ID since the email (or phone number) identifies your account as well if you ever need some help from the support.