This author is not terribly skillful with English or else he doesn't proofread his stuff or probably both. It shows he is careless and I would expect careless in thought, also.
Give him a break - 2 AM will do that to a person.
Mistakes like that are very easy to make when communicating online, even when one knows the difference. It’s just something about the medium, which isn’t quite the same as either writing or talking.
I’ve often found the poster to be very thoughtful.