tou-rist [n]: someone whose opinions differ from mine, and whom I would prefer to gatekeep.
I don't like the term 'tourist' because this is always what someone means when they use it.
There are all kinds of different people, with all kinds of different ethical/moral beliefs, in this hobby. One of the best things about it is that anyone can find likeminded fans and build a group of friends. If you don't like someone, move on. If you're being harassed, report it.
And there's no reason to shame someone for being new and not understanding something. We all started off there at some point. Be patient and welcoming to the newcomer.
On the other hand, posing as an authority when you're clearly not is dumb as hell, and a fan site like this is no place to get preachy about what you believe when it comes to politics or other divisive issues.
They're comics, bro. You read them for entertainment. Don't take them seriously.