It's very likely, given the occasional dropped article, that the poster in question is not a native English speaker, and probably from a language where 'double negative' is agreement, as in "we don't need no education".

You are correct that I'm not a native speaker, and also that my language uses double negatives. Alas, this mistake was due to editing small part of sentence and neglecting to re-read the whole thing. I won't try to avoid not making this error never again.

Also, thanks for pointing out the dropped articles. The gmail spell checker often wants to insert those into my texts. While in most cases it felt they were not necessary, obviously the omission gets noticed.