It's probably more to do with using a VPN than not being logged in. If I'm searching for something on a search engine and Reddit comes up in the results with potentially useful information, then I'll go there (the only time I go there now). I don't use a VPN and I'm never logged in, and I've never seen that page come up.

Which makes sense, because those greedy bastards are trying to hyper-monetize the content. And pesky VPNs make it difficult for them to harvest useful visitors info and/or throw tons of partially targeted ads on the poor user's screen.

Still good info on how to avoid it for the people who do encounter that annoying error page. So thanks for comparing that tidbit of knowledge.