Why do people use txtspk on forums like this.

I've lost count of the number of posts on this forum and others where somebody goes: "h m8 r u gg yr blk stpmd ovr hr? Do u wana cm 4 now or we 4get da fing?" I can't understand a bleedin' word...

What is data entry and are there any decent schemes?

I haven't found a way to search MyLot but somewhere I saw a discussion about 'data entry' schemes. I have free time that I want to use profitably (NOT blogging, I already know about that) and I've...