Same as Prof - the use of mobile phone text language.
Thinking the forum is the same as MSN.
Also using 'CD' and 'DVD' interchangeably.

We should be fair though, and have a competing poll where the techno-challenged members say what it is that annoys them about the responses of know-it-all helpers and staff:
eg:

1. Do a search, idiot!
2. LOL Noooob!!
3. Your problem is in a queue and will be answered shortly
4. I'm 12 years old and I know more than you do at 51.
5. Look at line 4 of the Java execution pathway at memory location &EA34F9. The indirect addressing branchpoint needs some adjustment.
6. I wuz gonna tell a mod about u nd ur DVDs