And people who actually say it in conversation should be physically chastised. Immediately. A slap around the chops will suffice. No warning. No excuses. If it's funny, laugh. If it's not, funny, don't laugh. But don't give a half-giggle and say the word 'lol'. DON'T DO IT.
The other thing I have noticed on social media is people posting photos of their babies and other people saying 'owwwww (s)he's so cute' instead of 'awwww'. I thought Owwwww was when you hurt yourself? When did Awwww become Owwww and why? WHY???