Tudor - some people intend it to mean: In My Honest Opinion!
You may also encounter:
IIRC = If I Recall Correctly
LOL = Laugh Out Loud
ROFLMAO = Rolling On The Floor Laughing My A$$ Off
If you search for Netiquette, you will find some very long lists of these kind of acronyms. That were use din the early days of e-mail (berfore the web) when transmission speeds were very slow and they wanted to save time. In the same way that telegram and telex developed a short form code to save money. Now it is the turn of the Mobile [cell] phone users to shorten everything. CU8R.
