I just looked at my profile and the level for each language (e.g. 1-25) no longer appears. I have enjoyed the added motivation of trying to get to the "next level". Can't see what the benefit is of turning that feature off.
Hey. I noticed that you can also see the levels on this website if you do this:
Hover over your profile image in the top-right corner of the page.
Click on the 'learning language' title in the right panel.
Click 'Reset or remove languages'
You do not actually have to remove or reset any language. In that setting menu it shows the level that you've attained in each language.
I still see all your levels in the banner.
edit-- it appears they are only visible here in the forum and nowhere else.
I wonder if the levels that show on the forums will be frozen or whether they will carry on, even though they are not displayed on our profiles.
Since I went to the trouble of making a bookmarklet for this: