O fcourse not typing error hmm and you never did it either oh oh what for a will like old said fat and dummy go together
They are raising a valid point though. Your grammar is horrible, which makes it harder to read your posts.
This often leads to an inability to properly understand what you're saying, and leads to either getting ignored completely, or ridiculed.
Putting effort into making what you're typing legible is a major step toward effective communication. That includes grammar and spelling.
People who aren't native english speakers will get
some latitude, but that is only as a courtesy. Many who don't speak english as a native language put effort into communicating clearly, which earns them more respect than if they didn't, and makes them valuable members to a forum where the only enforced language is english.
The same goes for native english speakers on foreign language forums.
Getting offended over insults to a lack of effective communication only makes that person look even worse in the eyes of other members.