Because it's impossible to complete a thought without a period
Seems like a silly conclusion
Obviously it's a preference. But you proved my point to me, your "sentences" look sloppy and incomplete. I try not to write like that, why would I code like that?
So kinda like lines.
Kinda. But not. Statements have little to do with lines, and they span lines very often. Variable declarations, especially objects and arrays. Many times for method calls too with many arguments. Kinda.