This seems new as of today:
If we look at a user profile, my username and icon is not right-aligned as on any other forum page.
(This is on Chrome)
Ah, it depends on the browser width. Looks OK if the window is ~>1000 pixels, but jumps to the left if the window is narrower.
Here is a comparison with a chrome window
Yes. I see what you mean on Firefox as well. It does seem to be around 1000 pixels and 750 like you said. At the same time, the block regions in the heard of the webpage rearrange. Sections that were to the left of the table seem to jump to the bottom. at about 630 wide, my username disappears from the blue ribbon and a bread crumb or two drops off the list.