Pretty sure there isn't a single Catholic among them that would tell you such actions weren't sinning...

Reeditors did that, rather than reddit I'd argue. Still the same result of becoming a far less useful heuristic though.

Not really sure how to "fix" a system like that, which depends on the masses to do something correctly. They... don't.

Very cool. I have a dragon egg one - been working very well for quite a few years now.

True, but it presumably would still require the user to open them.

But, I was mostly worried that just having the server installed would be enough.

It's only if you view a specifically crafted email in the web client... still worth upgrading of course.

To be fair, reddit moderation did both (rather than only the later)