I guess because some people have them set up on their computers. Otherwise the Ed's probably never seen the reason for one. Personally I would find it annoying - some of the crossword answers are weird words!
I tink most of us on AB can firgove spelking missteaks. I still have to ask Viv how to spell words and even then I hit the wring keys, despote the 'spell check' inbilt into my compitor. I seem to keep hotting the the next letter on the keybord ti what I inyend.
I'm happy with Explorer - its what I'm used to plus I never really have the time to switch things over onto the others - so I'll give iespell a try. Many thanks