Why forum have a large blank space in the left side ?

This is definitely not a feature, nor is it something I have seen.
It appears that you might be using Chrome ... does this happen all the time? is it perhaps related to browser cache?
Does this happen all the time?

happend all time?
- Not really, just happend this month
browser cache?
- try to clear cache but doesn't work.

I use Chrome version 73 and I don't see this bug. Maybe clear your browser's cache?
It could also be a Chrome extension messing with the layout.

Chrome extension?
- already disable and run in incognito mode but still happpend.

image: open in incognito mode with disabled all extension



Chrome v75