After checking one of my subscribers new video this morning, I looked in the comments section and came across this. (See screenshot below)

YouTube seriously needs to disable html within the comments section, not only can this be a potential flaw, look how messy and unprofessional it looks!

Anyone else noticed this? does YouTube even know about this?

*Update*.

Looks like they just noticed this and they have disabled comments on all of the videos on YouTube whilst they fix the problem. Screenshot here: