I consider myself smarter than PEOPLE that have no idea what they are talking about.
So, it’s a manners, thing. I still see upsides and downsides with this forum. It’s not private chatting. I try not to just interrupt the talking of others with one-word insults. I look at the post a person is replying to, to try and make sense of the situation. I suppose you can argue that “Ignorant” is not an insult, but most people would think it is, even when used in a sentence.
As far as the cruise-ship thing goes, I don’t know what to believe. One guy says the sewage is treated, and a diver says he sees it clearly underwater. Probably, they’re both right. The sewage can, and must be treated and stored near a port, where heavy shipping would otherwise destroy the waters. At sea, the sewage has to go, and the less spent, the better. When the ship carries 8000 people, it becomes a lot of sewage. That is what I was responding to.
I consider that all people don’t know what they’re talking about, from time to time.