Again, the dunces working at Google Inc. are making changes simply for the sake of change.
Do you know how annoying it is to accidentally post an incomplete comment when it is common knowledge that pressing ENTER at the end of the line should take you to the next line? Try it in Office Word, Excel, Notepad, any forum comment, even the comments typed here. All work the same way.
And no, please do not tell us 'you'll get used to the new way of making line breaks in Youtube!' That's just a cheap cop-out from cowards who refuse to acknowledge mistakes.
I want Google to provide the names and photos of the person(s) responsible for this idiocy, so that we can publicly name and shame him/her/them. We need punishment and a strong deterrent against future idiocy.
Youtube is primarily a video sharing site. Stop trying to make it imitate Facebook.