When I'm online I generally use grammar as well as I can, but I feel like talking to friends online can be an exception. Sometimes TYPING IN ALL CAPS is good for stressing a point and making it funnier, and often when talking to friends I don't bother with some punctuation...not sure why, it just seems more casual without it. But when I'm on forums, YouTube or messaging people I don't know so well I think it's better to use grammar to a greater degree (it does annoy me wen peepl use no effrt in there typign at al). Not sure why but I feel like it's okay to not use grammar in some places but it's required in others. Just my opinions, anyway.