I have my own theories about all the lolling going on. Shockingly, none involving actually laughing out loud. The first is that you can't hear tone in writing. This way people are able to appear easy going and inoffensive while still being opinionated. Passive-aggressiveness has a new mascot - it's the lol. For example (when commenting on your Facebook friend’s 87 vacation pictures) Wow! Almost like we were there with you! lol! Nice to see you have so much time on your hands! Lol Lol!!
Lol is also useful if one is self-conscious, shy, embarrassed or simply doesn’t “get” the conversation. It covers a lot of ground that way. (why, yes! lol! We do have more time nowadays! Lol lol!)
It’s also used – in my opinion – to indicate that anything preceding lol was probably not funny. They might be using it as a patronizing jab that they aren't brave enough to just put out there without a cushion. You are an idiot. Lol. Ditto “just sayin”. Ditto when it follows “no offense, but…” (actually, you know...ditto is also kind of lazy, while I'm on the topic)
Now, lmfao packs a punch. But I’m not allowed to say that word. I steer clear of the f ones, I’m just not an f word person. A well-placed wtf is very tempting sometimes, but it’s a slippery slope. ROTFL, well. I mean, really? No one is that funny, and I've seen some Will Ferrell movies. (full disclosure: for me it’s Jason Bateman but everyone always says, Jason Bateman? What’s he in? So instead I googled “funniest actors” and everyone knows Will Ferrell).
Anyway, they won’t be letters. They may not even be emails. They’ll just be a collection of single letters that appear in my brain downloaded through a chip in my ear. Or wireless. Something like that. Please let’s just say “you” while we can. U won't thank me, you will thank me. (long live all those pointless little consonants!!)
PS. yes, grandchildren. Because I'm realizing what I sound like in this post.