When you activate BB Code mode in the new text editor, it grays out the BB Code bar and forces you to manually type in all code, as opposed to how it used to be: the bar still worked, and clicking one of the BB codes would just inject the code into the text field.
When I am typing a reply here, there's the option to ‘toggle BBCode’. it's what I sue to see, for example, why some error in the message's code results in the entire message being accidentally turned into a hyperlink.
Toggling BBCode allows me to see the message's source instead of WYSIWYG but doesn't allow me to use any of the other tools in the bar unless I turn back into WYSIWYG mode.
I checked, and I agree, this is indeed a bit stupid.
I don't see a way to change this though :/.
I'm seeing that some threads have been marked as unread so people have bumped new threads and I'm taken to the beginning instead of to the new posts.
So the subscriptions page needs extra work.
That weird behaviour is sadly not new, and I have no idea what's causing this :/.