No, it reflects how much tolerance you have for laziness. The point of grammar is to be understood. Good grammar shows that the writer is trying to help the r

No, it reflects how much tolerance you have for laziness. The point of grammar is to be understood. Good grammar shows that the writer is trying to help the reader. Poor grammar shows that the writer doesn’t care, and the reader is forced to figure everything out. Arguably, mistakes that don’t affect understanding can be overlooked without any comment. For example, some words are pretty unique; you can seriously misspell them and still recognize them. On the other hand, you have to be careful with changes to words or even punctuation that can drastically alter the meaning of a sentence. I can also forgive things that are frankly inconsistent in the language. For instance, although I know when to use "its" versus "it’s", I certainly get why someone would think that "it’s" may be correct for possession; and, since it is very unlikely that "it is" will make any sense as a replacement, I can also figure out what was intended every time. No big deal.