WTF does it mean if someone is LOL with their BFF?

I hate all of these little abbreviations. Can't people just write in English anymore? People are even starting to speak in these nonsense. I can't make sense of half of it.

Science fiction writers used to imagine that the English language would change over time, for all sorts of odd reasons. Some thought that we would all learn some kind of multilingual shorthand to communicate with people from other countries, and that we would either add a lot more foreign words to English or perhaps give up speaking English altogether. Some thought that we would shorten words or phrases to conserve oxygen.

I don't think any of them predicted that the language would change so quickly because of idiot teenagers sending text messages.

I hate cell phones and people who talk on cell phones a lot. Cell phones for doctors and other people who needed to be reached quickly in an emergency was a good idea. Having an emergency phone in case your car breaks down is a good idea. Having a phone so that you can call for help if a date goes bad is a good idea.

Having a phone conversation with one person while you're supposed to be having dinner with someone else is NOT a good idea. Having someone from work trying to call to say something that can wait till business hours is NOT a good idea. Waiting till the last minute to tell people stuff just because you can probably get their cell phone is NOT a good idea. Making a phone call while you are mere inches away from me in a public restroom is NOT a good idea.

So I already hated the cell phones. Now I'm getting the nonsense abbreviations in my emails, from adults. If someone wants to say something, why do they need to type IMHO? I've already forgotten whatever your opinion was while I'm trying to figure out what is an IMHO.