There are bigger things in the world to worry about and this topic has been beaten to death already.(many times over)
There are people here from all walks of life, maybe some actually were never taught "proper" writing or language skills due to their upbringing and extent of education.
Maybe in their line of work its not an issue either, as it may also not be an issue where they live as well.
While some of the grammar errors are from people typing too fast and not really putting alot of thought into typos, for many its really all they know and its hurtful and humiliating to have it shoved in their faces.
They may not be educated in grammar but they may also not be stupid and know they are being singled out here.
You do understand what they are typing, communication is really not being hindered, its just annoying to some apparently, but there is no harm being done.( unless you point it out for all the world to see)
Maybe we should have a written test before people are allowed to become members of this chicken forum.
If they don't pass, they are not allowed to come here and discuss the high falutin hobby of raising chickens.
Which is really, as we all know, only for the highly educated.