Found an old, popular Reddit account that used to comment on Physics questions, a couple things seem wrong that I wanna make sure of, about black holes.

I've been here for 13-ish years, and while I was googling a question I had about black holes, I found this thread. I suddenly recognized the username, was a popular user on AskScience that most people now probably won't know, but anyway, I recognized it and wanted to have fun reading some of those comments, but I ended up being super confused.

I read this comment, specifically this part:

Finally, just before you're about to cross the event horizon, you see the entire rest of the observable universe contract to a single, brilliant point immediately behind you. If you train your telescope on that point, you'll see not only the light from all the stars and galaxies, but also a curious dim red glow. This is the cosmic microwave background, boosted to visibility by the intense gravitation of the black hole.

And then the point goes out. All at once, as if God turned off the switch.

I am not a an expert at all, but wouldn't you still be able to see light from outside, past the event horizon?

More importantly, this whole comment, seems like it goes against everything I know about black holes:

https://www.reddit.com/r/askscience/comments/j81b2/whats_in_a_black_hole/c29wpye/

Is it perhaps a valid way to explain it to a layman that I've just never heard? But the "it doesn't exist", it just feels very wrong to me, like the only place I've ever read most of that information is that specific comment. As far as I know, the inside of a black hole definitely exist, and you would be able to experience falling past the event horizon, so it makes no sense to me to say that it "isn't"

I'm either just not understanding it, or for some reason this was massively upvoted and no one seems to have corrected them, so I must be wrong?

Would really appreciate a second opinion here, because if that's correct then it's very different from any description of a black hole I've ever heard. There are other bits of comments they have here and there that also sound wrong, so I'm actually wondering if this person actually knew what they were talking about, how does it sound to you?