This is not a bug, it's an YouTube experiment that increases the text size for suggestion links to 19 pixels. I think the text is way too big and distracting.
Here's the regular interface (13 pixels):
Here's how you can enable the experimental feature. If you use Chrome, Firefox, Opera, Safari or Internet Explorer 8+:
1. open
youtube.com in a new tab
2. load your browser's developer console:
*
Chrome - press Ctrl+Shift+J for Windows/Linux/ChromeOS or Command-Option-J for Mac
*
Firefox - press Ctrl+Shift+K for Windows/Linux or Command-Option-K for Mac
*
Opera - press Ctrl+Shift+I for Windows/Linux or Command-Option-I for Mac, then click "Console"
*
Safari -
check this article*
Internet Explorer - press F12 and select the "Console" tab.
3. paste the following code which changes a YouTube cookie:
document.cookie="VISITOR_INFO1_LIVE=-fntp2HbKFI; path=/; domain=.youtube.com";window.location.reload();4. press Enter and close the console.
To go back to the regular interface, use the same instructions, but replace the code from step 3 with this one:
document.cookie="VISITOR_INFO1_LIVE=; path=/; domain=.youtube.com";window.location.reload();
ADS HERE !!!