I find it a big nuisance that line feeds in writing a comment end the comment and post it. I habitually make many line feeds - then an incomplete comment is posted and I must hurry to fix it in the short time allowed for editing an already submitted comment. I like to have time to think about what I write in my comments. If I make a second or third line feed this is iterated and costs more valuable time.
My suggestion is to treat the line feed like any other character, so that this kind of frequent ''surprises'' ino longer happens.
Enter
as submit. $\endgroup$