I hate texting because of this. I have a hard time reading them but understand the need for brevity. Hence I don't get email on my phone. I only respond to emails when I have a full keyboard in front of me.

"I'm not talking about friends emailing or texting friends, I'm talking of strangers writing strangers about something.... whether its inquiring about a cat from a rescue or a bag of clothes.... shouldn't it include proper English? "

I respect my friends enough to use proper English when responding to their emails. If I can't understand the message easily, I delete it. Don't care who it's from but ESPECIALLY from strangers.
Claudia