On the other hand, when someone texts you something that is genuinely funny and actually does get a physical response, the response that feels most appropriate is "LOL." Its usage is muddled by its rampant misuse.
If I'm meeting you for the first time and there's even a sliver of a chance that we will become close enough to communicate via text message, I want to know your primary definition of "LOL." I want to know if you're the kind of person who tosses it out with no regard for what that acronym can do to a person's ego. If we're texting and I say something somewhere in the area code of funny, are you going to throw me a "LOL" bone, or are you withholding your "LOL"s until I one day say something so goddamned hysterical that the only way to convey the level of nonstop hilarity you're in the midst of is by reducing the English language to base elements, hoping just three letters can encapsulate the euphoric laughter you're experiencing?
Or maybe you break it down into "LOL"s and "haha"s. Maybe "LOL" is generic and, as this trusty picture that's been floating on the Internet for years explains ...
... "haha"s are the true text-based signifier that actual laughter is going on on the other end of the phone, depending on how many "ha"s were included. Or maybe vice versa. Whatever. I want to know if you're actually laughing or if you're giving me the text equivalent of pity applause. It'll help me better understand your sense of humor. If I know what brings a genuine laugh out of you, I'll be more inclined to steer my sense of humor in that direction. If we're both working with the same definitions, we'll better understand each other, and you won't have to text me a pity "LOL" when I make a distasteful prison-rape joke that you're not too crazy about because you confused my brain by "LOL"ing my first 12 prison-rape jokes.