For me honestly, there are going to be those type of people who would use proper grammar and there are going to be others that can straight careless about how they write. I mean there are even times where I may mess up in how I write but I would still manage to improve it and make it more proper. but yeah I do however agree with Selbi that there is a difference from having speech issues to being just plain lazy. I mean I even have to improve on mine a bit and that's not being lazy at all. now if you where still in the process of learning how to speak in English then I can understand.