Whilst I agree with your sentiments
It's not always as simple as saying use the dictionary. Homonyms can cause endless confusion to people with dyslexia or dyspraxia and aren't picked up by spell checkers as they're spelled correctly and spell checkers, at least those in firefox, don't take context into account.

I agree that people should take time to write using correct spelling and grammar as the internet generally isn't a time restricted environment, so being rushed is no excuse.

At the other end of the spectrum, whilst I may mentally complain at someones barely coherent ramblings, I usually keep quiet about it as long I can understand what they are saying. After all, that's the important thing.

The other thing to remember that the internet is a global phenomenom and with people from all over the world, there are doubtless many for whom English is a second language.
( LemonEntryMyDearWatson This time, Moriarty, the hand is on the other foot, Wed 2 Apr 2008, 13:10, Reply)