"lol" was used to react to *other people* when it first became Internet language. It meant "You really made me laugh out loud".

Now everybody uses it to react to [b]themselves[/b] -- to say "[u]I am so funny[/u]", and to mean "[u]The point I am making is so great that I am laughing, so it must be a great point[/u]".

Stop that. Run from the inner child. Run.